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              "unit": "people",
              "count": 11730,
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            "title": "Office for National Statistics (ONS), United Kingdom — Task 890 community statistics",
            "status": "retained",
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            "publisher": "Office for National Statistics (ONS), United Kingdom",
            "source_id": "ons.gov.uk:Census2021:BUA:country-of-birth",
            "source_url": "https://www.ons.gov.uk/file?uri=/peoplepopulationandcommunity/housing/datasets/townsandcitiescharacteristicsofbuiltupareasenglandandwalescensus2021/2021/townsandcitiescharacteristicsofbuiltupareasenglandandwalescensus2021.xlsx",
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            "last_checked": "2026-08-30",
            "source_quality": "verified",
            "last_checked_period": "2026-08-30",
            "last_checked_precision": "day"
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      "homebuyer": null,
      "recorded_safety": null,
      "questions": [
        {
          "question": "Is Chalfont Saint Peter part of London?",
          "answer": "Chalfont Saint Peter is near London, but the collected evidence does not establish that it is administratively part of the hub or an official satellite. It is about 31.7 km away by straight-line distance."
        },
        {
          "question": "How many people born in Europe: EU countries live in Chalfont Saint Peter?",
          "answer": "The official country of birth distribution records 675 people (4.9%) in the source-defined population for 2021 Census. This is a country of birth measure, not a general estimate of ethnicity or migration status."
        }
      ]
    },
    "country_rules_url": "/countries/united-kingdom/",
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        "question": "How many people live in Chalfont Saint Peter?",
        "direct_answer": "The published population was 13,650 people in March 2021.",
        "qualifier": "City-scope resident count. Density, foreign-resident counts and the country-wide figure are separate rows in the table below.",
        "temporal": {
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          "source_period": "March 2021",
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        "slot_id": "city.air_quality.pm25_annual",
        "answer_type": "direct_metric",
        "status": "supported",
        "question": "Is the air quality good in Chalfont Saint Peter?",
        "direct_answer": "The annual PM2.5 mean is about 7.7 µg/m³ (2025) — above the WHO 2021 guideline of 5 µg/m³ but within the EU limit of 25 µg/m³.",
        "qualifier": "Annual mean at the measuring site(s) serving the city; current-day readings differ.",
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          "source_period": "2025",
          "captured_at": "2026-07-15"
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          "normalized_value": 7.73,
          "machine_value": 7.73,
          "display_value": "7.7",
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        "slot_id": "city.unemployment.current",
        "answer_type": "direct_metric",
        "status": "supported",
        "question": "What is the unemployment rate in Chalfont Saint Peter?",
        "direct_answer": "The unemployment rate is 2.7 % (2025-2026).",
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        "temporal": {
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          "source_period": "2025-2026",
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}
