{
  "id-zmienna": 28,
  "nazwa": "Live births per 1000 population",
  "nazwa-skrocona": "Live births per 1000 population",
  "tagi": [
    {
      "id-tag": 774,
      "nazwa-tag": "birth"
    },
    {
      "id-tag": 853,
      "nazwa-tag": "rate"
    },
    {
      "id-tag": 1595,
      "nazwa-tag": "demography"
    }
  ],
  "pojecia": [
    {
      "id-pojecie": 596,
      "nazwa-pojecie": "Birth rate",
      "definicja": "Ratio of the number of live births in a given period (usually year) to the population as of the middle period or the average number of people in this period.",
      "uwagi": "<p>\n\tBirth rates for different periods (month, quarter, half year, three quarters, etc.) are calculated on an annual basis, i.e. that the examined facts recorded in a given period are increased accordingly to the annual volumes, e.g. for the rate calculated for the period: month – the number of facts is multiplied by 12, quarter – by 4, half of the year – by 2, three quarters – by 4/3.</p>\n",
      "data-poczatku-pojecie": "1999-07-01",
      "data-konca-pojecie": "2017-12-31"
    },
    {
      "id-pojecie": 3959,
      "nazwa-pojecie": "Birth rate",
      "definicja": "<p>\n\tRatio of the number of live births in a given period (usually year) to the population as of the middle of the period or the average number of population in this period – expressed in ‰ (i.e. per 1000 population).</p>\n",
      "uwagi": "<p>\n\tBirth rates for different periods (month, quarter, half year, three quarters, etc.) are calculated on an annual basis, i.e. that the examined facts recorded in a given period are increased accordingly to the annual volumes, e.g. for the rate calculated for the period: month – the number of facts is multiplied by 12, quarter – by 4, half of the year – by 2, three quarters – by 4/3.</p>\n",
      "data-poczatku-pojecie": "2018-01-01",
      "data-konca-pojecie": "9999-12-31"
    }
  ],
  "wyjasnienia-metodologiczne": {
    "notki": []
  },
  "przekroje": [
    {
      "id-przekroj": 16,
      "nazwa-przekroj": "poland - monthly data",
      "szereg-czasowy": "2010 - 2026",
      "id-czestotliwosc": 3,
      "nazwa-czestotliwosc": "Month",
      "aktualizacja-ostatnia": "2026-10-19",
      "aktualizacja-kolejna": "2026-10-23"
    },
    {
      "id-przekroj": 1215,
      "nazwa-przekroj": "Poland, voivodships, powiats, gminas, parts of gminas; Type of locality; Child's sex",
      "szereg-czasowy": "2002 - 2025",
      "id-czestotliwosc": 1,
      "nazwa-czestotliwosc": "Year",
      "aktualizacja-ostatnia": "2026-07-06",
      "aktualizacja-kolejna": "2027-06-30"
    },
    {
      "id-przekroj": 1215,
      "nazwa-przekroj": "Poland, voivodships, powiats, gminas, parts of gminas; Type of locality; Child's sex",
      "szereg-czasowy": "2002 - 2026",
      "id-czestotliwosc": 4,
      "nazwa-czestotliwosc": "Half-year",
      "aktualizacja-ostatnia": "2025-10-29",
      "aktualizacja-kolejna": "2026-10-24"
    },
    {
      "id-przekroj": 1216,
      "nazwa-przekroj": "Poland, macroregions, regions, subregions; Type of locality; Child's sex",
      "szereg-czasowy": "2002 - 2025",
      "id-czestotliwosc": 1,
      "nazwa-czestotliwosc": "Year",
      "aktualizacja-ostatnia": "2026-07-06",
      "aktualizacja-kolejna": "2027-06-30"
    },
    {
      "id-przekroj": 1216,
      "nazwa-przekroj": "Poland, macroregions, regions, subregions; Type of locality; Child's sex",
      "szereg-czasowy": "2002 - 2026",
      "id-czestotliwosc": 4,
      "nazwa-czestotliwosc": "Half-year",
      "aktualizacja-ostatnia": "2025-10-29",
      "aktualizacja-kolejna": "2026-10-24"
    }
  ],
  "zestawy": [
    {
      "id-zestaw": 639,
      "nazwa-zestaw": "Register of civil status",
      "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"
    }
  ]
}