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

6 years are reported by both, from 1970 to 1985.

Where does this data come from?

UNESCO Institute for Statistics, published as Gross enrolment ratio for tertiary education, adjusted gender parity index (GPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Sri Lanka vs Tonga: Gross enrolment ratio for tertiary education, adjusted gender parity

Sri Lanka

1.38 GPIA

in 2019

Tonga

1.4 GPIA

in 2003

Sri Lanka rank

28th

Tonga rank

25th

Gross enrolment ratio for tertiary education, adjusted gender parity over time

Sri Lanka
Tonga

How they compare

Tonga currently reports 1.4 GPIA against 1.38 GPIA in Sri Lanka, a difference of 0.02 GPIA.

The two have swapped places 1 time across 6 shared years of data; in 1970 it was Sri Lanka ahead.

Sri Lanka ranks 28th and Tonga ranks 25th of 181 countries.

Across the 2 decades both report, Sri Lanka averaged higher in 1 and Tonga in 1.

Head to head by decade

Decade	Sri Lanka	Tonga	Difference	Ahead
1970s	0.6498 GPIA	0.5221 GPIA	0.1276 GPIA	Sri Lanka
1980s	0.7077 GPIA	1.13 GPIA	0.423 GPIA	Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher gross enrolment ratio for tertiary education, adjusted gender parity, Sri Lanka or Tonga?: Tonga, at 1.4 GPIA against 1.38 GPIA in Sri Lanka as of 2003.
What is the difference in gross enrolment ratio for tertiary education, adjusted gender parity between Sri Lanka and Tonga?: 0.02 GPIA, with Tonga ahead.
How many years of comparable data are there for Sri Lanka and Tonga?: 6 years are reported by both, from 1970 to 1985.
How do Sri Lanka and Tonga rank globally for gross enrolment ratio for tertiary education, adjusted gender parity?: Sri Lanka ranks 28th and Tonga ranks 25th of 181 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Gross enrolment ratio for tertiary education, adjusted gender parity index (GPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Sri Lanka vs Tonga: Gross enrolment ratio for tertiary education, adjusted gender parity. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 30 August 2026, from https://reference.statizoid.com/compare/gross-enrolment-ratio-for-tertiary-education-adjusted-gender-parity-index-gpia/sri-lanka/tonga/

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<a href="https://reference.statizoid.com/compare/gross-enrolment-ratio-for-tertiary-education-adjusted-gender-parity-index-gpia/sri-lanka/tonga/">Sri Lanka vs Tonga: Gross enrolment ratio for tertiary education, adjusted gender parity</a> — Statizoid

About this data

Indicator: Gross enrolment ratio for tertiary education, adjusted gender parity index (GPIA)
Unit: GPIA
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 224 places, 7,092 data points, 1970–2020
Last refreshed: 21 August 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/