Tonga vs Upper middle income: School life expectancy, primary and secondary, female

Tonga
14.02 years
in 2015
Upper middle income
11.66 years
in 2019
Tonga rank
12th
Upper middle income rank
12th

School life expectancy, primary and secondary, female over time

  • Tonga
  • Upper middle income
051015197019942019

How they compare

Tonga currently reports 14.02 years against 11.66 years in Upper middle income, a difference of 2.36 years.

That makes Tonga's figure about 1.2 times Upper middle income's.

Across all 25 years both countries report, Tonga has been ahead every year.

Tonga ranks 12th and Upper middle income ranks 12th of 193 countries.

Tonga has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade Tonga Upper middle income Difference Ahead
1970s 12.01 years 8.05 years 3.96 years Tonga
1980s 13.39 years 8.36 years 5.03 years Tonga
1990s 13.5 years 9.32 years 4.18 years Tonga
2000s 12.84 years 10.58 years 2.26 years Tonga
2010s 13.45 years 11.35 years 2.09 years Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher school life expectancy, primary and secondary, female, Tonga or Upper middle income?
Tonga, at 14.02 years against 11.66 years in Upper middle income as of 2015.
What is the difference in school life expectancy, primary and secondary, female between Tonga and Upper middle income?
2.36 years, with Tonga ahead.
How many years of comparable data are there for Tonga and Upper middle income?
25 years are reported by both, from 1975 to 2015.
How do Tonga and Upper middle income rank globally for school life expectancy, primary and secondary, female?
Tonga ranks 12th and Upper middle income ranks 12th of 193 countries.
Where does this data come from?
UNESCO Institute for Statistics, published as School life expectancy, primary and secondary, female (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Tonga vs Upper middle income: School life expectancy, primary and secondary, female. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 29 August 2026, from https://education.statizoid.com/compare/school-life-expectancy-primary-and-secondary-female-years/tonga/upper-middle-income/

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About this data

Indicator
School life expectancy, primary and secondary, female (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
238 places, 7,783 data points, 1970–2020
Last refreshed

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.