{
  "metadata": {
    "title": "学校外活動費2023_活動別の支出率と平均",
    "analysis_date": "2026-08-31",
    "survey_fiscal_year": 2023,
    "period_start": "2023-04-01",
    "period_end": "2024-03-31",
    "corrected_date": "2026-01-16",
    "school_order": [
      "公立小学校",
      "公立中学校"
    ],
    "activity_order": [
      "家庭内学習費",
      "通信教育・家庭教師費",
      "学習塾費",
      "その他",
      "体験活動・地域活動",
      "芸術文化活動",
      "スポーツ・レクリエーション活動",
      "国際交流体験活動",
      "教養・その他"
    ],
    "denominator": {
      "overall_mean": "該当学校区分の全児童・生徒。支出ゼロを含む。公式復元推計値。",
      "spending_rate": "該当学校区分の全児童・生徒のうち当該費目に支出した者の比率。回答した保護者・世帯数そのものの割合として独自に算出しない。",
      "spender_mean": "該当費目の年間支出がある児童・生徒のみ。費目ごとに分母が違う。"
    },
    "units": {
      "overall_mean_yen": "円／子供一人当たり年額",
      "spending_rate_pct": "％／公表1桁小数",
      "spender_mean_thousand_yen": "千円／支出した子供一人当たり年額／公表整数",
      "spender_mean_yen_converted": "公表千円を1000倍した単位換算値。円単位で測定された支出者平均ではない。"
    },
    "rounding": "全体平均は円、支出率は0.1％刻み、支出者平均は千円。公表3値の積に完全一致を要求しない。原資料で丸めの端数処理方式は今回未確認。差を残し、再構成値で公表平均を置換しない。丸め境界・標本誤差・信頼区間を混同しない。",
    "zero_expenditure": "100－公表支出率で計算した補数。利用しなかった者の割合ではない。表3の「0」「0.0」は単位未満、「－」は計数なし、「…」は対象外等。これらの記号を無差別に0へ置換しない。今回採用24行の3数値に特殊記号はない。",
    "sampling": [
      {
        "school": "公立小学校",
        "valid_responses": 6627,
        "valid_response_rate_pct": 34.3,
        "source": "調査の概要_20260116訂正.pdf 1頁・5頁",
        "meaning": "全費目共通の有効回答数。活動別支出者標本数、母集団人数、有効標本サイズではない。"
      },
      {
        "school": "公立中学校",
        "valid_responses": 1327,
        "valid_response_rate_pct": 49.1,
        "source": "調査の概要_20260116訂正.pdf 1頁・5頁",
        "meaning": "全費目共通の有効回答数。活動別支出者標本数、母集団人数、有効標本サイズではない。"
      }
    ],
    "field_labels": {
      "school": "学校区分",
      "activity": "原表費目名",
      "parent_activity": "原表上位費目名",
      "row_kind": "活動／集計費目",
      "overall_mean_yen": "全体平均（円）",
      "spending_rate_pct": "支出率（％）",
      "spender_mean_thousand_yen": "支出者平均額（千円）",
      "zero_expenditure_pct_complement": "支出率の補数（％）",
      "published_product_yen": "公表支出率×公表支出者平均の積（円）",
      "overall_minus_published_product_yen": "公表全体平均－公表値積（円）"
    },
    "unresolved": [
      "丸め端数の具体的規則",
      "活動別支出者の標本人数",
      "活動別支出率・平均の標準誤差と共分散",
      "個別ウェイト・個票",
      "非回答バイアスの定量評価",
      "利用・参加率、単価、回数、継続月数、無料利用、支出ゼロの理由",
      "所得別標準誤差の既知不整合（本分析には未使用）"
    ]
  },
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      "spender_mean_thousand_yen": 262,
      "spender_mean_yen_converted": 262000,
      "zero_expenditure_pct_complement": 1.9,
      "published_product_yen": 257022.0,
      "overall_minus_published_product_yen": -533.0,
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      "spending_source": {
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      "activity_en": "Supplementary learning",
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    },
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      "activity_en": "Correspondence education and private tutors",
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      "activity": "教養・その他",
      "activity_en": "General learning and other activities",
      "parent_activity": "その他の学校外活動費",
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      "activity": "その他",
      "parent_activity": "補助学習費",
      "order": [
        "公立小学校",
        "公立中学校"
      ],
      "difference_direction": "公立中学校－公立小学校",
      "overall_mean_difference_yen": 5103,
      "spending_rate_difference_pp": 21.2,
      "spender_mean_difference_thousand_yen": 7,
      "overall_mean_ratio": "3.611566018423746161719549642",
      "spending_rate_ratio": "2.109947643979057591623036649",
      "spender_mean_ratio": "1.7"
    },
    {
      "activity": "体験活動・地域活動",
      "parent_activity": "その他の学校外活動費",
      "order": [
        "公立小学校",
        "公立中学校"
      ],
      "difference_direction": "公立中学校－公立小学校",
      "overall_mean_difference_yen": -3464,
      "spending_rate_difference_pp": -18.3,
      "spender_mean_difference_thousand_yen": 0,
      "overall_mean_ratio": "0.4528510503869846785657873954",
      "spending_rate_ratio": "0.4487951807228915662650602410",
      "spender_mean_ratio": "1"
    },
    {
      "activity": "芸術文化活動",
      "parent_activity": "その他の学校外活動費",
      "order": [
        "公立小学校",
        "公立中学校"
      ],
      "difference_direction": "公立中学校－公立小学校",
      "overall_mean_difference_yen": -9631,
      "spending_rate_difference_pp": -14.4,
      "spender_mean_difference_thousand_yen": 3,
      "overall_mean_ratio": "0.7142814762074285036193188561",
      "spending_rate_ratio": "0.6909871244635193133047210300",
      "spender_mean_ratio": "1.041666666666666666666666667"
    },
    {
      "activity": "スポーツ・レクリエーション活動",
      "parent_activity": "その他の学校外活動費",
      "order": [
        "公立小学校",
        "公立中学校"
      ],
      "difference_direction": "公立中学校－公立小学校",
      "overall_mean_difference_yen": -32539,
      "spending_rate_difference_pp": -27.9,
      "spender_mean_difference_thousand_yen": -15,
      "overall_mean_ratio": "0.5109050188639540651445234409",
      "spending_rate_ratio": "0.6141078838174273858921161826",
      "spender_mean_ratio": "0.8369565217391304347826086957"
    },
    {
      "activity": "国際交流体験活動",
      "parent_activity": "その他の学校外活動費",
      "order": [
        "公立小学校",
        "公立中学校"
      ],
      "difference_direction": "公立中学校－公立小学校",
      "overall_mean_difference_yen": 2980,
      "spending_rate_difference_pp": -0.4,
      "spender_mean_difference_thousand_yen": 131,
      "overall_mean_ratio": "3.249056603773584905660377358",
      "spending_rate_ratio": "0.8571428571428571428571428571",
      "spender_mean_ratio": "3.787234042553191489361702128"
    },
    {
      "activity": "教養・その他",
      "parent_activity": "その他の学校外活動費",
      "order": [
        "公立小学校",
        "公立中学校"
      ],
      "difference_direction": "公立中学校－公立小学校",
      "overall_mean_difference_yen": -16906,
      "spending_rate_difference_pp": -17.9,
      "spender_mean_difference_thousand_yen": -14,
      "overall_mean_ratio": "0.5318324056381711943729057628",
      "spending_rate_ratio": "0.7699228791773778920308483290",
      "spender_mean_ratio": "0.6956521739130434782608695652"
    }
  ]
}