{
  "status": "Final saved dataset: 78 observations, 6 series; native Line missing-period fix applied. Composition and final MP4 acceptance recorded separately.",
  "period": "31 March 1998–31 March 2026; annual fiscal-year-end observations; no launch-age alignment",
  "unit": "million hardware units shipped worldwide; manufacturer consolidated sell-in (not retail consumers)",
  "selection": [
    "Game Boy",
    "DS",
    "Wii",
    "PS4",
    "Switch",
    "PS5"
  ],
  "family_scope": "Game Boy includes Game Boy Color; DS includes DS variants; Switch includes original/Lite/OLED, excludes Switch2. Handhelds and home consoles explicitly mixed as hardware families.",
  "zero_policy": "No artificial zero rows, no post-reporting extension. Explicit source annual zero cells retained in Annual.",
  "cumulative_once": "Already cumulative CSV; native Cumulative Sum OFF. Fill Missing Values OFF.",
  "precision": "Nintendo backward reconstruction from reported LTD/rounded annual/grouped entries; displayed rounded to0.01million, not exact daily counts. Sony sum of annual figures at0.1million source precision; PS4 sum117.1 differs rounded official lower-bound117.0, not recalibrated. Annuals retained independently.",
  "exclusions": {
    "PS1_PS2": "Primary annual/cumulative production-shipment observations prepared separately in workers/sources; not mixed into consolidated sell-in record comparison because factory shipment recognition differs.",
    "PS3_Xbox360": "Existing2008–2012 series was a partial-period cumulative baseline, cannot be represented as lifetime alongside selected consoles. Archives preserved.",
    "before1998": "No annual Nintendo source retrieved before1998; no invented 1980s/early1990s trajectories.",
    "2026_quarter": "Full FY snapshots at common31March; June2026 partial quarter not appended to annual steps."
  },
  "sources": {
    "nintendo": {
      "dataset": "Nintendo worldwide dedicated video game hardware sell-in",
      "units": "millions of units",
      "sources": [
        {
          "id": "historical_console_annual_sales",
          "title": "Nintendo IR Consolidated Sales Transition by Region, FY3/1998–FY3/2026 workbook",
          "url": "https://www.nintendo.co.jp/ir/finance/historical_data/xls/consolidated_sales_e2603.xlsx",
          "landing_url": "https://www.nintendo.co.jp/ir/en/finance/historical_data/index.html",
          "source_file_reused": "state/agents/growth/run-artifacts/2026-10-16-agent-growth-manual-5df17a3d55f943e7859dc0cf25d824e9/nintendo-sales-2603.xlsx",
          "source_sha256": "013bae4e416e767daa7d92fca33c8f97b211e67e5e44d585cb89c155ee7b2cd2",
          "verified_via": "Nintendo IR historical data landing page navigated on 2026-10-17; workbook sheets parsed locally",
          "sheets": [
            "NES to Nintendo GameCube",
            "Nintendo DS to Wii",
            "Nintendo 3DS to Wii U",
            "Nintendo Switch and after"
          ],
          "units": "Source cells in ten-thousand units; converted to million units by /100",
          "note": "FY3/2015~ on legacy tab and FY3/2024~ on DS/Wii tab are grouped periods, not annual points; excluded as individual dated observations. Life-to-date column anchors cumulative values; cumulative at each annual observation is calculated by subtracting subsequent reported annual/grouped-period cells from the life-to-date total."
        },
        {
          "id": "switch_historical_xlsx",
          "title": "Nintendo IR historical sales by region workbook, As of March 31, 2026",
          "url": "https://www.nintendo.co.jp/ir/finance/historical_data/xls/consolidated_sales_e2603.xlsx",
          "landing_url": "https://www.nintendo.co.jp/ir/en/finance/historical_data/index.html",
          "source_file_reused": "state/agents/growth/run-artifacts/2026-10-17-agent-growth-manual-4c05a0c522b2060d868b5d1f1fc20202/workers/sources/nintendo-historical-sales-by-region.xlsx",
          "source_sha256": "013bae4e416e767daa7d92fca33c8f97b211e67e5e44d585cb89c155ee7b2cd2",
          "series_used": "Nintendo Switch family, annual worldwide hardware total and life-to-date; source values in ten-thousand units",
          "date_basis": "Nintendo fiscal year end March 31"
        },
        {
          "id": "historical_hardware_sellin_chart",
          "title": "Nintendo Financial Results Explanatory Material, Historical Hardware Sell-In and Annual Playing Users",
          "url": "https://www.nintendo.co.jp/ir/pdf/2026/260203_2e.pdf",
          "verified_via": "Web navigation; PDF p.13 (chart), p.24 (sales units definitions)",
          "note": "Confirms terminology and historical timeline graphic, but chart is stacked/rounded and is not used to invent annual device breakdowns."
        }
      ],
      "definitions": {
        "annual_million": "Nintendo consolidated worldwide annual hardware sell-in from yearly FY columns; cells in grouped FY3/2015~ or FY3/2024~ periods are excluded from annual rows.",
        "cumulative_million": "Calculated from Nintendo life-to-date hardware total minus all later published annual and grouped-period values. Values reflect source rounding and may include signed rounding adjustments as published.",
        "blank": "Missing/not reported in retrieved primary source; never means zero."
      }
    },
    "sony": {
      "dataset": "Sony PlayStation hardware sales/shipments observations",
      "retrieved_on": "2026-10-17",
      "csv": "sony_playstation_hardware.csv",
      "unit": "million hardware units",
      "time_basis": "Sony FYYYYY labels in this CSV use the year beginning April 1, YYYY and ending March 31, YYYY+1. The annual-report datapoint FY1996 therefore covers 1996-04-01 through 1997-03-31.",
      "sources": [
        {
          "source_id": "sony_business_data_sales",
          "publisher": "Sony Interactive Entertainment",
          "title": "Business Data & Sales",
          "url": "https://sonyinteractive.com/en/our-company/business-data-sales/",
          "accessed_on": "2026-10-17",
          "published_on": null,
          "measurement": "Sell-in; Sony's page labels both cumulative worldwide hardware unit sales and annual PS4/PS5 unit sales as Sell-in. Annual table unit is millions. Page note: includes returned and refurbished products.",
          "observations_used": "PS4 annual FY2013-FY2021; PS5 annual FY2020-FY2025 and Q1 FY2026; cumulative PS1/PS2/PS3/PS4/PS5 snapshots. Cumulative values are stated as 'more than' and kept as lower bounds, not exact totals.",
          "cumulative_as_of": {
            "PlayStation": "2012-03-31",
            "PlayStation 2": "2012-03-31",
            "PlayStation 3": "2017-03-31",
            "PlayStation 4": "2022-06-30",
            "PlayStation 5": "2026-06-30"
          }
        },
        {
          "source_id": "sony_fy2004_earnings",
          "publisher": "Sony Corporation Investor Relations",
          "title": "FY 2004 Q4 Electronics Performance by Product Category (Unaudited)",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/presen/er/04q4_eleki.pdf",
          "document_date": "2005-04-27",
          "measurement": "Production shipments, million units; shipment recognized when product ships from manufacturing bases. These are factory shipments and not consumer sell-through.",
          "observations_used": "PS2 FY2003 20.10m; FY2004 16.17m. Fiscal-year labels FY2003/FY2004 refer to years ending March 31, 2004/2005 respectively."
        },
        {
          "source_id": "sony_fy2006_earnings",
          "publisher": "Sony Corporation Investor Relations",
          "title": "Supplemental Information for FY2006 Earnings",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/presen/er/06q4_eleki.pdf",
          "document_date": "2007-05-16",
          "measurement": "Production shipments, million units; footnote says hardware/software units count when shipped from manufacturing bases. Factory shipments, not consumer sell-through.",
          "observations_used": "PS2 FY2005 16.22m; FY2006 14.20m. PS3 FY2006 5.50m. FY2006 ended 2007-03-31."
        },
        {
          "source_id": "sony_ar1998",
          "publisher": "Sony Corporation Investor Relations",
          "title": "Sony Annual Report 1998",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/ar/ar_sony_1998.pdf",
          "measurement": "Production shipments, million units; Sony annual-report language describes production shipments. This records manufacturer shipments, not consumer sell-through or retailer sell-in.",
          "observations_used": "PlayStation FY1996 9.20m and FY1997 19.37m; production-shipment figures. The report says 19.37m versus 9.2m in the previous fiscal year."
        },
        {
          "source_id": "sony_ar1999",
          "publisher": "Sony Corporation Investor Relations",
          "title": "Sony Annual Report 1999",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/ar/ar_sony_1999.pdf",
          "measurement": "Production shipments, million units; Sony annual-report language describes production shipments. This records manufacturer shipments, not consumer sell-through or retailer sell-in.",
          "observations_used": "PlayStation FY1998 21.60m; production shipments."
        },
        {
          "source_id": "sony_ar2000",
          "publisher": "Sony Corporation Investor Relations",
          "title": "Sony Annual Report 2000",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/ar/ar_sony_2000.pdf",
          "measurement": "Production shipments, million units; Sony annual-report language describes production shipments. This records manufacturer shipments, not consumer sell-through or retailer sell-in.",
          "observations_used": "PlayStation FY1999 18.50m; PS2 FY1999 1.41m; production shipments."
        },
        {
          "source_id": "sony_ar2001",
          "publisher": "Sony Corporation Investor Relations",
          "title": "Sony Annual Report 2001",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/ar/ar2001e.pdf",
          "measurement": "Production shipments, million units; Sony annual-report language describes production shipments. This records manufacturer shipments, not consumer sell-through or retailer sell-in.",
          "observations_used": "PlayStation FY2000 9.31m; PS2 FY2000 9.20m; production shipments."
        },
        {
          "source_id": "sony_ar2002",
          "publisher": "Sony Corporation Investor Relations",
          "title": "Sony Annual Report 2002",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/ar/e_ar2002.pdf",
          "measurement": "Production shipments, million units; Sony annual-report language describes production shipments. This records manufacturer shipments, not consumer sell-through or retailer sell-in.",
          "observations_used": "PS2 FY2001 18.07m; production shipments."
        },
        {
          "source_id": "sony_ar2003",
          "publisher": "Sony Corporation Investor Relations",
          "title": "Sony Annual Report 2003",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/ar/e_ar2003.pdf",
          "measurement": "Production shipments, million units; Sony annual-report language describes production shipments. This records manufacturer shipments, not consumer sell-through or retailer sell-in.",
          "observations_used": "PlayStation FY2001 7.40m and FY2002 6.78m; PS2 FY2002 22.52m; production shipments."
        },
        {
          "source_id": "sony_ar2004",
          "publisher": "Sony Corporation Investor Relations",
          "title": "Sony Annual Report 2004",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/ar/SonyAR04-E.pdf",
          "measurement": "Production shipments, million units; Sony annual-report language describes production shipments. This records manufacturer shipments, not consumer sell-through or retailer sell-in.",
          "observations_used": "PlayStation FY2003 3.31m; PS2 FY2003 20.10m; production shipments."
        },
        {
          "source_id": "sony_ar2005",
          "publisher": "Sony Corporation Investor Relations",
          "title": "Sony Annual Report 2005",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/ar/SonyAR05-E.pdf",
          "measurement": "Production shipments, million units; Sony annual-report language describes production shipments. This records manufacturer shipments, not consumer sell-through or retailer sell-in.",
          "observations_used": "PlayStation FY2004 2.77m; PS2 FY2004 16.17m; production shipments."
        },
        {
          "source_id": "sony_ar2006",
          "publisher": "Sony Corporation Investor Relations",
          "title": "Supplemental Information for FY2006 Earnings",
          "url": "https://www.sony.com/en/SonyInfo/IR/library/presen/er/06q4_eleki.pdf",
          "measurement": "Production shipments, million units; Sony annual-report language describes production shipments. This records manufacturer shipments, not consumer sell-through or retailer sell-in.",
          "observations_used": "PS2 FY2005 16.22m and FY2006 14.20m; PS3 FY2006 5.50m. Sony defines shipments at dispatch from manufacturing bases."
        },
        {
          "source_id": "sony_ps1_1996_09_05",
          "publisher": "Sony Computer Entertainment / Sony Interactive Entertainment Japan archive",
          "title": "PlayStation cumulative production shipment milestone",
          "url": "https://sonyinteractive.com/uploads/sites/5/2023/02/960905.pdf",
          "document_date": "1996-09-05",
          "measurement": "Cumulative worldwide production shipments, not consumer sell-through or sell-in.",
          "observations_used": "Sony Computer Entertainment Japan press release: global cumulative production shipments reached 7.2 million units as of 1996-09-05."
        },
        {
          "source_id": "sony_ps1_1996_10_31",
          "publisher": "Sony Computer Entertainment / Sony Interactive Entertainment Japan archive",
          "title": "PlayStation cumulative production shipment milestone",
          "url": "https://sonyinteractive.com/uploads/sites/5/2023/02/961031_1.pdf",
          "document_date": "1996-10-31",
          "measurement": "Cumulative worldwide production shipments, not consumer sell-through or sell-in.",
          "observations_used": "Sony Computer Entertainment global press release dated 1996-10-31: cumulative production shipments reached 9.0 million units (Japan 4.0m, North America 2.8m, Europe 2.2m)."
        }
      ],
      "comparability": [
        "Sony FYYYYY labels in this CSV mean the year beginning April 1, YYYY and ending March 31, YYYY+1. Older annual reports often title the reporting year by its March end date; CSV labels and explicit dates use the fiscal-year start convention used in Sony quarterly tables.",
        "No primary Sony source with a global cumulative PlayStation shipment figure exactly as of March 31, 1996 was found in this pass. The first annual PS1 row is FY1996 (1996-04-01 to 1997-03-31), not a lifetime baseline. Do not sum the available annual rows and call the result lifetime sales.",
        "Sony primary archive records early PS1 cumulative production-shipment milestones of 7.2m on 1996-09-05 and 9.0m on 1996-10-31. These dated cumulative observations provide historical context but do not fill the March 1996 baseline.",
        "Older annual report production shipments count dispatch from manufacturing bases; current SIE Business Data & Sales labels hardware figures sell-in and includes returned and refurbished products. These are not consumer sell-through; keep measurement_basis visible.",
        "Cumulative console snapshots have differing dates and definitions. They are separate snapshot rows, not annual observations, and cannot be differenced safely into annual sales.",
        "PS1 annual production-shipment observations are available FY1996–FY2004. PS2 annual production-shipment observations are available FY1999–FY2006. PS3 annual history is sparse.",
        "Values reported as “more than” are lower bounds stored with qualifier=more_than. Missing annual years have no rows, never zero."
      ]
    },
    "switch_direct_cumulatives": "/home/debian/projects/chartglow/state/agents/growth/run-artifacts/2026-10-17-agent-growth-manual-4c05a0c522b2060d868b5d1f1fc20202/console-recent-20261017.sources.json"
  },
  "images": {
    "Game Boy": {
      "url": "https://upload.wikimedia.org/wikipedia/commons/f/f4/Game-Boy-FL.jpg",
      "page": "https://commons.wikimedia.org/wiki/File:Game-Boy-FL.jpg",
      "creator": "Evan-Amos",
      "license": "Public domain / PD-self"
    },
    "DS": {
      "url": "https://upload.wikimedia.org/wikipedia/commons/a/a3/Nintendo-DS-Fat-Blue.png",
      "page": "https://commons.wikimedia.org/wiki/File:Nintendo-DS-Fat-Blue.png",
      "creator": "Evan-Amos",
      "license": "Public domain / PD-self; prior accepted proof preserved"
    },
    "Wii": {
      "url": "https://upload.wikimedia.org/wikipedia/commons/1/14/Wii-console.jpg",
      "page": "https://commons.wikimedia.org/wiki/File:Wii-console.jpg",
      "creator": "Evan-Amos",
      "license": "Public domain / PD-self; prior accepted proof preserved"
    },
    "Switch": {
      "url": "https://upload.wikimedia.org/wikipedia/commons/7/76/Nintendo-Switch-Console-Docked-wJoyConRB.jpg",
      "page": "https://commons.wikimedia.org/wiki/File:Nintendo-Switch-Console-Docked-wJoyConRB.jpg",
      "creator": "Evan-Amos",
      "license": "Public domain / PD-self; prior accepted proof preserved"
    },
    "PS4": {
      "url": "https://upload.wikimedia.org/wikipedia/commons/7/71/Sony-PlayStation-4-PS4-wDualShock-4.jpg",
      "page": "https://commons.wikimedia.org/wiki/File:Sony-PlayStation-4-PS4-wDualShock-4.jpg",
      "creator": "Evan-Amos",
      "license": "Public domain / PD-self"
    },
    "PS5": {
      "url": "https://upload.wikimedia.org/wikipedia/commons/1/1b/Playstation_5_base_edition_with_controller_%28original%29.jpg",
      "page": "https://commons.wikimedia.org/wiki/File:Playstation_5_base_edition_with_controller_(original).jpg",
      "creator": "Howardcorn33",
      "license": "CC0 1.0"
    }
  },
  "windows": {
    "Game Boy": {
      "first": "1998-03-31",
      "last": "2014-03-31",
      "n": 17
    },
    "DS": {
      "first": "2005-03-31",
      "last": "2023-03-31",
      "n": 19
    },
    "Wii": {
      "first": "2007-03-31",
      "last": "2023-03-31",
      "n": 17
    },
    "Switch": {
      "first": "2017-03-31",
      "last": "2026-03-31",
      "n": 10
    },
    "PS4": {
      "first": "2014-03-31",
      "last": "2022-03-31",
      "n": 9
    },
    "PS5": {
      "first": "2021-03-31",
      "last": "2026-03-31",
      "n": 6
    }
  },
  "rows": 78
}
