Is school life expectancy, post-secondary non-tertiary, both sexes rising or falling in Tonga?

Over the last ten years it is up 687.9%. The long-run trend across the full record is volatile.

School life expectancy, post-secondary non-tertiary, both sexes in Tonga

Name: School life expectancy, post-secondary non-tertiary, both sexes in Tonga
Creator: UNESCO Institute for Statistics
License: CC BY 4.0 (World Bank Open Data)

Tonga: School life expectancy, post-secondary non-tertiary, both sexes was 1.41 years in 2015. ◆ Volatile

Latest (2015)

1.41 years

World rank

5th

of 109 countries

All-time high

1.41 years

in 2015

All-time low

0.0631 years

in 2000

Years of data

1998–2015

School life expectancy, post-secondary non-tertiary, both sexes in Tonga, 1998–2015

Source: UNESCO Institute for Statistics. Measured in years.

Analysis

Tonga recorded 1.41 years for school life expectancy, post-secondary non-tertiary, both sexes in 2015. That is the highest value across all 10 years on record.

Compared with earlier readings it is up 687.9% over ten years.

Over the whole period, school life expectancy, post-secondary non-tertiary, both sexes in Tonga peaked at 1.41 years in 2015 and was at its lowest, 0.0631 years, in 2000.

Tonga ranks 5th of 109 countries on this measure, in the top 10%.

The series is highly variable year to year, so single readings are best treated with caution.

Averages by decade

Decade	Average	Lowest	Highest	Years
1990s	0.1675 years	0.1602 years	0.1747 years	2
2000s	0.137 years	0.0631 years	0.191 years	7
2010s	1.41 years	1.41 years	1.41 years	1

Countries ranked near Tonga

2 Seychelles 1.82 years compare
3 Gibraltar 1.78 years compare
4 Jamaica 1.77 years compare
6 Dominica 1.34 years compare
7 Saint Vincent and the Grenadines 1.09 years compare
8 Iran 1.02 years compare

See the full ranking of 109 places →

More reference data data for Tonga

Emission Totals - Emissions (N2O) - Agricultural Soils 0.0799 (2050)
Emission Totals - Emissions (CO2eq) from N2O (AR5) - Agricultural Soil 21.17 (2050)
Emission Totals - Emissions (CO2eq) from N2O (AR5) - Manure left on Pa 11.82 (2050)
Emission Totals - Emissions (CO2eq) from N2O (AR5) - Manure applied to 9.35 (2050)
Emission Totals - Emissions (CO2eq) from N2O (AR5) - IPCC Agriculture 28.31 (2050)
Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.0197 (2050)
Emission Totals - Emissions (N2O) - Manure left on Pasture 0.0446 (2050)
Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.0197 (2050)
Emission Totals - Emissions (N2O) - IPCC Agriculture 0.1068 (2050)
Emission Totals - Emissions (CO2eq) from N2O (AR5) - Manure Management 7.14 (2050)

All data for Tonga →

Frequently asked questions

What is school life expectancy, post-secondary non-tertiary, both sexes in Tonga?: School life expectancy, post-secondary non-tertiary, both sexes in Tonga was 1.41 years in 2015, according to UNESCO Institute for Statistics.
What is the highest school life expectancy, post-secondary non-tertiary, both sexes recorded in Tonga?: The highest recorded value was 1.41 years in 2015.
What is the lowest school life expectancy, post-secondary non-tertiary, both sexes recorded in Tonga?: The lowest recorded value was 0.0631 years in 2000.
How does Tonga rank for school life expectancy, post-secondary non-tertiary, both sexes?: Tonga ranks 5th out of 109 countries with data for 2015.
Is school life expectancy, post-secondary non-tertiary, both sexes rising or falling in Tonga?: Over the last ten years it is up 687.9%. The long-run trend across the full record is volatile.
Where does this Tonga data come from?: The figures come from UNESCO Institute for Statistics, published as part of School life expectancy, post-secondary non-tertiary, both sexes (years). Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 10 observations, free to reuse under CC BY 4.0 (World Bank Open Data).

About this data

Indicator: School life expectancy, post-secondary non-tertiary, both sexes (years)
Unit: years
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 109 places, 1,403 data points, 1998–2020
Last refreshed: 07 August 2026

Number of years a person of school entrance age can expect to spend within the specified level of education. For a child of a certain age a, the school life expectancy is calculated as the sum of the age specific enrolment rates for the levels of education specified. The part of the enrolment that is not distributed by age is divided by the school-age population for the level of education they are enrolled in, and multiplied by the duration of that level of education. The result is then added to the sum of the age-specific enrolment rates. A relatively high SLE indicates greater probability for children to spend more years in education and higher overall retention within the education system. It must be noted that the expected number of years does not necessarily coincide with the expected number of grades of education completed, because of repetition. Since school life expectancy is an average based on participation in different levels of education, the expected number of years of schooling may be pulled down by the magnitude of children who never go to school. Those children who are in school may benefit from many more years of education than the average.