{
  "name": "Calibration card: pie chart",
  "desc": "The values in the Calibration card at the top of the page, one field per row, with the source of each value.",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "The Yardstick Almanac",
  "url": "https://theyardstickalmanac.com/reading-charts/pie-chart/",
  "from": [
    "U.S. Census Bureau, Population Division, Vintage 2025 national and state population estimates and components of change (NST-EST2025-ALLDATA.csv, released January 2026, unmodified copy), POPESTIMATE2025 for the four Census regions and the United States"
  ],
  "how": "Compiled by The Yardstick Almanac from the data listed",
  "data_by": [
    "Computed from U.S. Census Bureau Vintage 2025 population estimates (NST-EST2025-ALLDATA, released January 2026, public domain), retrieved 2026-11-01, CC BY 4.0"
  ]
}