Sierra Leone - Population ages 15-64 (% of total population)

Population ages 15-64 (% of total population) in Sierra Leone was 56.73 as of 2020. Its highest value over the past 60 years was 57.96 in 1960, while its lowest value was 52.12 in 1993.

Definition: Total population between the ages 15 to 64 as a percentage of the total population. Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship.

Source: World Bank staff estimates based on age/sex distributions of United Nations Population Division's World Population Prospects: 2019 Revision.

See also:

Year Value
1960 57.96
1961 57.67
1962 57.48
1963 57.36
1964 57.28
1965 57.22
1966 56.80
1967 56.47
1968 56.22
1969 56.01
1970 55.86
1971 55.42
1972 55.08
1973 54.82
1974 54.63
1975 54.51
1976 54.14
1977 53.90
1978 53.74
1979 53.64
1980 53.59
1981 53.31
1982 53.11
1983 52.98
1984 52.91
1985 52.87
1986 52.62
1987 52.46
1988 52.37
1989 52.36
1990 52.48
1991 52.28
1992 52.16
1993 52.12
1994 52.16
1995 52.25
1996 52.18
1997 52.23
1998 52.35
1999 52.48
2000 52.54
2001 52.57
2002 52.65
2003 52.75
2004 52.89
2005 53.11
2006 53.15
2007 53.25
2008 53.41
2009 53.64
2010 53.91
2011 54.03
2012 54.24
2013 54.49
2014 54.78
2015 55.10
2016 55.37
2017 55.66
2018 55.97
2019 56.33
2020 56.73

Development Relevance: Patterns of development in a country are partly determined by the age composition of its population. Different age groups have different impacts on both the environment and on infrastructure needs. Therefore the age structure of a population is useful for analyzing resource use and formulating future policy and planning goals with regards infrastructure and development. This indicator is used for calculating age dependency ratio (percent of working-age population). The age dependency ratio is the ratio of the sum of the population aged 0-14 and the population aged 65 and above to the population aged 15-64. In many developing countries, the once rapidly growing population group of the under-15 population is shrinking. As a result, high fertility rates, together with declining mortality rates, are now reflected in the larger share of the 65 and older population.

Limitations and Exceptions: Because the five-year age group is the cohort unit and five-year period data are used in the United Nations Population Division's World Population Prospects, interpolations to obtain annual data or single age structure may not reflect actual events or age composition. For more information, see the original source.

Statistical Concept and Methodology: Age structure in the World Bank's population estimates is based on the age structure in United Nations Population Division's World Population Prospects. For more information, see the original source. Total population is based on the de facto population including all residents regardless of legal status or citizenship. The values shown are midyear estimates. For more information see metadata for total population (SP.POP.TOTL).

Aggregation method: Weighted average

Periodicity: Annual

Classification

Topic: Health Indicators

Sub-Topic: Population