"人口統計学" meaning in Japanese

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  "etymology_text": "From 人口統計 (jinkō tōkei, “population statistics”) + 学 (-gaku, “-graphy”).",
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      "form": "人口統計学",
      "ruby": [
        [
          "人",
          "じん"
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          "口",
          "こう"
        ],
        [
          "統",
          "とう"
        ],
        [
          "計",
          "けい"
        ],
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          "学",
          "がく"
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          "name": "Demography",
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  "word": "人口統計学"
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      "name": "suf"
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  "etymology_text": "From 人口統計 (jinkō tōkei, “population statistics”) + 学 (-gaku, “-graphy”).",
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