SDG: Small Island Developing States vs Tonga: Gross enrolment ratio, secondary, adjusted gender parity index

SDG: Small Island Developing States
1.01 GPIA
in 2024
Tonga
1.07 GPIA
in 2024
SDG: Small Island Developing States rank
43rd
Tonga rank
45th

Gross enrolment ratio, secondary, adjusted gender parity index over time

  • SDG: Small Island Developing States
  • Tonga
00.250.50.7511.2197019972024

How they compare

Tonga currently reports 1.07 GPIA against 1.01 GPIA in SDG: Small Island Developing States, a difference of 0.06 GPIA.

That makes Tonga's figure about 1.1 times SDG: Small Island Developing States's.

The two have swapped places 9 times across 35 shared years of data; in 1971 it was SDG: Small Island Developing States ahead.

SDG: Small Island Developing States ranks 43rd and Tonga ranks 45th of 221 groups.

Across the 6 decades both report, SDG: Small Island Developing States averaged higher in 4 and Tonga in 2.

Head to head by decade

Decade SDG: Small Island Developing States Tonga Difference Ahead
1970s 1.02 GPIA 0.9795 GPIA 0.0413 GPIA SDG: Small Island Developing States
1980s 1.05 GPIA 1.03 GPIA 0.027 GPIA SDG: Small Island Developing States
1990s 1.06 GPIA 1.03 GPIA 0.0318 GPIA SDG: Small Island Developing States
2000s 1.03 GPIA 1.03 GPIA 0.0008 GPIA SDG: Small Island Developing States
2010s 1.02 GPIA 1.07 GPIA 0.0478 GPIA Tonga
2020s 1.01 GPIA 1.08 GPIA 0.0649 GPIA Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher gross enrolment ratio, secondary, adjusted gender parity index, SDG: Small Island Developing States or Tonga?
Tonga, at 1.07 GPIA against 1.01 GPIA in SDG: Small Island Developing States as of 2024.
What is the difference in gross enrolment ratio, secondary, adjusted gender parity index between SDG: Small Island Developing States and Tonga?
0.06 GPIA, with Tonga ahead.
How many years of comparable data are there for SDG: Small Island Developing States and Tonga?
35 years are reported by both, from 1971 to 2024.
How do SDG: Small Island Developing States and Tonga rank globally for gross enrolment ratio, secondary, adjusted gender parity index?
SDG: Small Island Developing States ranks 43rd and Tonga ranks 45th of 221 groups.
Where does this data come from?
UNESCO Institute for Statistics, published as Gross enrolment ratio, secondary, adjusted gender parity index (GPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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SDG: Small Island Developing States vs Tonga: Gross enrolment ratio, secondary, adjusted gender parity index. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 02 September 2026, from https://education.statizoid.com/compare/gross-enrolment-ratio-secondary-adjusted-gender-parity-index-gpia/sdg-small-island-developing-states/tonga/

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About this data

Indicator
Gross enrolment ratio, secondary, adjusted gender parity index (GPIA)
Unit
GPIA
Source
UNESCO Institute for Statistics
Licence
CC BY-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
433 places, 15,760 data points, 1970–2025
Last refreshed

February 2026 Data Release