Tanzania | Life expectancy at birth, total (years)
Life expectancy at birth indicates the number of years a newborn infant would live if prevailing patterns of mortality at the time of its birth were to stay the same throughout its life. Development relevance: Mortality rates for different age groups (infants, children, and adults) and overall mortality indicators (life expectancy at birth or survival to a given age) are important indicators of health status in a country. Because data on the incidence and prevalence of diseases are frequently unavailable, mortality rates are often used to identify vulnerable populations. And they are among the indicators most frequently used to compare socioeconomic development across countries. Limitations and exceptions: Annual data series from United Nations Population Division's World Population Prospects are interpolated data from 5-year period data. Therefore they may not reflect real events as much as observed data. Statistical concept and methodology: Life expectancy at birth used here is the average number of years a newborn is expected to live if mortality patterns at the time of its birth remain constant in the future. It reflects the overall mortality level of a population, and summarizes the mortality pattern that prevails across all age groups in a given year. It is calculated in a period life table which provides a snapshot of a population's mortality pattern at a given time. It therefore does not reflect the mortality pattern that a person actually experiences during his/her life, which can be calculated in a cohort life table. High mortality in young age groups significantly lowers the life expectancy at birth. But if a person survives his/her childhood of high mortality, he/she may live much longer. For example, in a population with a life expectancy at birth of 50, there may be few people dying at age 50. The life expectancy at birth may be low due to the high childhood mortality so that once a person survives his/her childhood, he/she may live much longer than 50 years.
Publisher
The World Bank
Origin
United Republic of Tanzania
Records
63
Source
Tanzania | Life expectancy at birth, total (years)
42.937 1960
43.1 1961
43.285 1962
43.494 1963
43.747 1964
44.026 1965
44.381 1966
44.756 1967
45.366 1968
45.973 1969
46.45 1970
46.917 1971
47.324 1972
47.978 1973
48.306 1974
48.722 1975
49.236 1976
49.842 1977
50.321 1978
50.907 1979
51.201 1980
51.472 1981
51.528 1982
51.543 1983
51.546 1984
51.556 1985
51.672 1986
51.726 1987
51.843 1988
51.739 1989
51.485 1990
51.306 1991
50.989 1992
50.87 1993
50.797 1994
50.786 1995
50.744 1996
50.624 1997
50.914 1998
51.748 1999
52.362 2000
53.161 2001
53.863 2002
54.895 2003
55.596 2004
56.299 2005
56.911 2006
57.52 2007
58.086 2008
58.894 2009
60.105 2010
61.049 2011
62.03 2012
62.96 2013
63.873 2014
64.651 2015
65.386 2016
65.999 2017
66.535 2018
66.989 2019
66.408 2020
66.201 2021
2022
Tanzania | Life expectancy at birth, total (years)
Life expectancy at birth indicates the number of years a newborn infant would live if prevailing patterns of mortality at the time of its birth were to stay the same throughout its life. Development relevance: Mortality rates for different age groups (infants, children, and adults) and overall mortality indicators (life expectancy at birth or survival to a given age) are important indicators of health status in a country. Because data on the incidence and prevalence of diseases are frequently unavailable, mortality rates are often used to identify vulnerable populations. And they are among the indicators most frequently used to compare socioeconomic development across countries. Limitations and exceptions: Annual data series from United Nations Population Division's World Population Prospects are interpolated data from 5-year period data. Therefore they may not reflect real events as much as observed data. Statistical concept and methodology: Life expectancy at birth used here is the average number of years a newborn is expected to live if mortality patterns at the time of its birth remain constant in the future. It reflects the overall mortality level of a population, and summarizes the mortality pattern that prevails across all age groups in a given year. It is calculated in a period life table which provides a snapshot of a population's mortality pattern at a given time. It therefore does not reflect the mortality pattern that a person actually experiences during his/her life, which can be calculated in a cohort life table. High mortality in young age groups significantly lowers the life expectancy at birth. But if a person survives his/her childhood of high mortality, he/she may live much longer. For example, in a population with a life expectancy at birth of 50, there may be few people dying at age 50. The life expectancy at birth may be low due to the high childhood mortality so that once a person survives his/her childhood, he/she may live much longer than 50 years.
Publisher
The World Bank
Origin
United Republic of Tanzania
Records
63
Source