Some portion of the population counted as "working age" may actually be unemployed or not in the labor force whereas some portion of the "dependent" population may be employed and not necessarily economically dependent. (life expectancy at birth, both sexes combined), © Copyright Worldometers.info - All rights reserved -, Countries in the world ranked by Life Expectancy, World Population Prospects: The 2019 Revision, World Urbanization Prospects - Population Division, Organisation for Economic Co-operation and Development (OECD). ; Niger 2020 population is estimated at 24,206,644 people at mid year according to UN data. The Indian TFR declined from 3.2 in 2000 to 2.3 in 2016. The TFR is, therefore, a measure of the fertility of an imaginary woman who passes through her reproductive life subject to all the age-specific fertility rates for ages 15–49 that were recorded for a given population in a given year. ", List of sovereign states and dependencies by total fertility rate, Total fertility rate in England by county / unitary authority, Total fertility rates by federal subjects of Russia, List of U.S. states and territories by fertility rate, List of European regions by fertility rate, Total fertility rate definition from CIA world factbook, http://kostat.go.kr/assist/synap/preview/skin/doc_mobile.xhtml?fn=synapview380865_1&rs=/assist/synap/preview, https://www.macrotrends.net/countries/NER/niger/fertility-rate, UNdata: Total fertility rate (children per woman), National Association for Public Health Statistics and Information Systems (NAPHSIS), "Country Comparison :: Total Fertility Rate", "Country Comparison :: GDP - per capita (PPP)", "World Health Organization, Total Fertility Rate", "The surprising global variation in replacement fertility", "A Note on the Changing Relationship between Fertility and Female Employment Rates in Developed Countries", "World population projected to reach 9.8 billion in 2050, and 11.2 billion in 2100", "Cross-National Patterns of Intergenerational Continuities in Childbearing in Developed Countries", "Religiosity and Fertility in the United States: The Role of Fertility Intentions", "Differences in childbearing by time frame of fertility intention. The inverse relationship between income and fertility has been termed a demographic-economic "paradox" by the notion that greater means would enable the production of more offspring, as first suggested by demographic scholar Thomas Malthus in 1798. The total fertility rate (TFR), sometimes also called the fertility rate, absolute/potential natality, period total fertility rate (PTFR), or total period fertility rate (TPFR) of a population is the average number of children that would be born to a woman over her lifetime if: It is obtained by summing the single-year age-specific rates at a given time. TFR (net) and long term population growth rate, g, are closely related. Formula: ([Population ages 0-15] ÷ [Population ages 16-64]) × 100, Elderly dependency ratio Definition: population ages 65-plus divided by the population ages 16-64.Formula: ([Population ages 65-plus] ÷ [Population ages 16-64]) × 100, Total dependency ratio Definition: sum of the youth and old-age ratios. [29] According to 2018 estimates for the non-EU European post-Soviet states group, Russia had a TFR of 1.61, Moldova 1.57, Ukraine 1.55, and Belarus 1.49. Afghanistan, Solomon Islands and Timor-Leste are the remaining three. This time-lag effect is of great importance to the growth rates of human populations. [44] Currently, the fertility is below replacement among those native born, and above replacement among immigrant families, most of whom come to the United States from countries with higher fertility.