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Vital Statistics / Basic Demographic Indicators. Provisional data 2021

The number of deaths decreased by 8.7% during 2021. The number of births decreased by 1.3% and the average number of children per woman remained at 1.19. The natural population growth of the resident population presented a negative balance of 113,023 people. Marriages increased by 63.0% compared to 2020.

Demographic indicators - Year 2021
Indicator Note Value Annual change
Gross birth rate 1 7.10 -1.24
Short-term fertility indicator. 2 1.19 0.32
Average maternity age 3 32.60 0.85
Gross mortality rate 1 9.49 -8.72
Infant mortality rate (younger than one year of age) 4 2.52 -2.83
Life expectancy at birth 3 83.06 0.88
Gross marriage rate 1 3.12 63.83
  • Per thousand inhabitants
  • Number of children per woman
  • Number of years
  • Per thousand live births
Latest data
Provisional data 2021 Published:15/06/2022 and 21/06/2022

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The Basic Demographic Indicators constitute a collection of indicators that summarize the historical evolution of the behaviour of basic demographic phenomena in Spain (birth rate, fertility, mortality and marriage rate), of the divorces, of the migratory movements, and of the growth and structure of the population resident in the country. They are calculated from the results of the statistics of Births, Deaths and Marriages, of the Statistics on Annulments, Separations and Divorces, of the Statistics on migration and of the Figures of population resident in Spain of reference.

National, Autonomous and provincial demographic indicators are published, calculated according to basic demographic characteristics, such as sex, age and nationality (Spanish/foreign). The series of results started in 1975, although the breakdown by nationality has only been available since 2002, divorce indicators begin in 2005 and the indicators on migration movement started in 2008.