Tonga | Life expectancy at birth, male (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
Kingdom of Tonga
Records
63
Source
Tonga | Life expectancy at birth, male (years)
1960 55.866
1961 56.198
1962 56.602
1963 57.01
1964 57.43
1965 57.846
1966 58.287
1967 58.725
1968 59.157
1969 59.621
1970 60.004
1971 60.316
1972 60.549
1973 60.775
1974 61.08
1975 61.334
1976 61.606
1977 61.764
1978 62.058
1979 62.274
1980 62.465
1981 62.645
1982 62.616
1983 62.855
1984 62.973
1985 63.136
1986 63.257
1987 63.39
1988 63.533
1989 63.688
1990 63.835
1991 64.033
1992 64.208
1993 64.39
1994 64.569
1995 64.74
1996 64.92
1997 65.135
1998 65.288
1999 65.486
2000 65.7
2001 65.924
2002 66.176
2003 66.388
2004 66.625
2005 66.836
2006 67.013
2007 67.233
2008 67.382
2009 67.277
2010 67.567
2011 67.63
2012 67.709
2013 67.79
2014 67.844
2015 67.925
2016 67.991
2017 68.065
2018 68.149
2019 68.265
2020 68.337
2021 68.416
2022

Tonga | Life expectancy at birth, male (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
Kingdom of Tonga
Records
63
Source