Tonga vs United States of America: School life expectancy, primary and lower secondary, gender parity

Tonga
0.9962 GPI
in 2015
United States of America
0.9953 GPI
in 2018
Tonga rank
86th
United States of America rank
88th

School life expectancy, primary and lower secondary, gender parity over time

  • Tonga
  • United States of America
00.250.50.751199320052018

How they compare

Tonga currently reports 0.9962 GPI against 0.9953 GPI in United States of America, a difference of 0.0009 GPI.

The two have swapped places 3 times across 5 shared years of data; in 1998 it was Tonga ahead.

Tonga ranks 86th and United States of America ranks 88th of 188 countries.

Across the 3 decades both report, Tonga averaged higher in 2 and United States of America in 1.

Head to head by decade

Decade Tonga United States of America Difference Ahead
1990s 1.02 GPI 1.01 GPI 0.0058 GPI Tonga
2000s 0.9858 GPI 0.9985 GPI 0.0127 GPI United States of America
2010s 1.01 GPI 0.9997 GPI 0.0062 GPI Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher school life expectancy, primary and lower secondary, gender parity, Tonga or United States of America?
Tonga, at 0.9962 GPI against 0.9953 GPI in United States of America as of 2015.
What is the difference in school life expectancy, primary and lower secondary, gender parity between Tonga and United States of America?
0.0009 GPI, with Tonga ahead.
How many years of comparable data are there for Tonga and United States of America?
5 years are reported by both, from 1998 to 2015.
How do Tonga and United States of America rank globally for school life expectancy, primary and lower secondary, gender parity?
Tonga ranks 86th and United States of America ranks 88th of 188 countries.
Where does this data come from?
UNESCO Institute for Statistics, published as School life expectancy, primary and lower secondary, gender parity index (GPI). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Tonga vs United States of America: School life expectancy, primary and lower secondary, gender parity. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 25 August 2026, from https://reference.statizoid.com/compare/school-life-expectancy-primary-and-lower-secondary-gender-parity-index-gpi/tonga/united-states/

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About this data

Indicator
School life expectancy, primary and lower secondary, gender parity index (GPI)
Unit
GPI
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
233 places, 4,492 data points, 1981–2020
Last refreshed

Ratio of female school life expectancy to the male school life expectancy. It is calculated by dividing the female value for the indicator by the male value for the indicator. A GPI equal to 1 indicates parity between females and males. In general, a value less than 1 indicates disparity in favor of males and a value greater than 1 indicates disparity in favor of females.