{
  "id-zmienna": 591,
  "nazwa": "Fertility rate",
  "nazwa-skrocona": "Fertility rate",
  "tagi": [
    {
      "id-tag": 345,
      "nazwa-tag": "number of children"
    },
    {
      "id-tag": 730,
      "nazwa-tag": "fertility"
    },
    {
      "id-tag": 774,
      "nazwa-tag": "birth"
    },
    {
      "id-tag": 853,
      "nazwa-tag": "rate"
    }
  ],
  "pojecia": [
    {
      "id-pojecie": 868,
      "nazwa-pojecie": "General fertility rate",
      "definicja": "The ratio of number of live births in a given period to the number of women who are of childbearing age.",
      "uwagi": "<p>\n\tThe rate is calculated for periods not shorter than one year. It expresses the average number of children born during the given period per 1000 women (or 100 women) in the reproductive age.</p>\n",
      "data-poczatku-pojecie": "1999-07-01",
      "data-konca-pojecie": "2017-12-31"
    },
    {
      "id-pojecie": 3954,
      "nazwa-pojecie": "Generalfertility rate",
      "definicja": "<p>\n\tRatio of the number of live births in a given period to the number of women in the reproductive age (15–49).</p>\n",
      "uwagi": "<p>\n\tThe rate is calculated for periods not shorter than one year. It expresses the average number of children born during the given period per 1000 women (or 100 women) in the reproductive age.</p>\n",
      "data-poczatku-pojecie": "2018-01-01",
      "data-konca-pojecie": "9999-12-31"
    }
  ],
  "wyjasnienia-metodologiczne": {
    "notki": []
  },
  "przekroje": [
    {
      "id-przekroj": 460,
      "nazwa-przekroj": "Poland, voivodships, powiats; Type of locality; Age of mother - fertility",
      "szereg-czasowy": "2000 - 2025",
      "id-czestotliwosc": 1,
      "nazwa-czestotliwosc": "Year",
      "aktualizacja-ostatnia": "2026-07-06",
      "aktualizacja-kolejna": "2027-06-30"
    },
    {
      "id-przekroj": 479,
      "nazwa-przekroj": "Poland, macroregions, regions, subregions; Type of locality; Age of mother - fertility",
      "szereg-czasowy": "2000 - 2025",
      "id-czestotliwosc": 1,
      "nazwa-czestotliwosc": "Year",
      "aktualizacja-ostatnia": "2026-07-06",
      "aktualizacja-kolejna": "2027-06-30"
    }
  ],
  "zestawy": [
    {
      "id-zestaw": 639,
      "nazwa-zestaw": "Register of civil status",
      "id-gestor": 754,
      "nazwa-gestor": "Ministry of Digital Affairs "
    },
    {
      "id-zestaw": 713,
      "nazwa-zestaw": "PESEL register",
      "id-gestor": 754,
      "nazwa-gestor": "Ministry of Digital Affairs "
    }
  ],
  "badania": [
    {
      "id-badanie": 35,
      "symbol-badanie": "1.21.01",
      "temat-badanie": "Births. Fertility"
    },
    {
      "id-badanie": 40,
      "symbol-badanie": "1.21.07",
      "temat-badanie": "Balance of the state and structure of the population based on demographic characteristics"
    }
  ],
  "akty-prawne": [
    {}
  ],
  "jednostki": [
    {
      "id-jednostka": 593,
      "nazwa-jednostki": "Demographic Research Department"
    }
  ]
}