How many years of comparable data are there for Bhutan and Tonga?

6 years are reported by both, from 1998 to 2015.

Where does this data come from?

UNESCO Institute for Statistics, published as Out-of-school rate for children and adolescents of primary and lower secondary school age, adjusted gender parity index (GPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Bhutan vs Tonga: Out-of-school rate for children and adolescents of primary and lower

Bhutan

0.5524 GPIA

in 2018

Tonga

0.4959 GPIA

in 2015

Bhutan rank

122nd

Tonga rank

125th

Out-of-school rate for children and adolescents of primary and lower over time

Bhutan
Tonga

How they compare

Bhutan currently reports 0.5524 GPIA against 0.4959 GPIA in Tonga, a difference of 0.0565 GPIA.

That makes Bhutan's figure about 1.1 times Tonga's.

The two have swapped places 4 times across 6 shared years of data; in 1998 it was Bhutan ahead.

Bhutan ranks 122nd and Tonga ranks 125th of 148 countries.

Across the 3 decades both report, Bhutan averaged higher in 2 and Tonga in 1.

Head to head by decade

Decade	Bhutan	Tonga	Difference	Ahead
1990s	1.14 GPIA	1.2 GPIA	0.0507 GPIA	Tonga
2000s	1.11 GPIA	1.05 GPIA	0.059 GPIA	Bhutan
2010s	0.6771 GPIA	0.4968 GPIA	0.1803 GPIA	Bhutan

Averages of every year both report within each decade.

Frequently asked questions

Which has higher out-of-school rate for children and adolescents of primary and lower, Bhutan or Tonga?: Bhutan, at 0.5524 GPIA against 0.4959 GPIA in Tonga as of 2018.
What is the difference in out-of-school rate for children and adolescents of primary and lower between Bhutan and Tonga?: 0.0565 GPIA, with Bhutan ahead.
How many years of comparable data are there for Bhutan and Tonga?: 6 years are reported by both, from 1998 to 2015.
How do Bhutan and Tonga rank globally for out-of-school rate for children and adolescents of primary and lower?: Bhutan ranks 122nd and Tonga ranks 125th of 148 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Out-of-school rate for children and adolescents of primary and lower secondary school age, adjusted gender parity index (GPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Bhutan vs Tonga: Out-of-school rate for children and adolescents of primary and lower. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 14 September 2026, from https://reference.statizoid.com/compare/out-of-school-rate-for-children-and-adolescents-of-primary-and-lower-secondary-school-age-3/bhutan/tonga/

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About this data

Indicator: Out-of-school rate for children and adolescents of primary and lower secondary school age, adjusted gender parity index (GPIA)
Unit: GPIA
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 191 places, 4,346 data points, 1970–2019
Last refreshed: 04 September 2026

The Adjusted Gender Parity Index (GPIA) is calculated by dividing the female value for the indicator by the male value for the indicator. If the resulting value exceeds 1, the ratio is inverted and subtracted from 2. The adjusted gender parity index is symmetrical around 1 and lies in the range 0-2. An adjusted 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. For more information, consult the UNESCO Institute for Statistics: http://uis.unesco.org/