Tonga vs Zambia: Completion rate, lower secondary education, adjusted gender parity
Tonga
1.11 modelled data
in 2025
Zambia
1.1 modelled data
in 2025
Tonga rank
37th
Zambia rank
40th
Completion rate, lower secondary education, adjusted gender parity over time
- Tonga
- Zambia
How they compare
Tonga currently reports 1.11 modelled data against 1.1 modelled data in Zambia, a difference of 0.01 modelled data.
Across all 45 years both countries report, Tonga has been ahead every year.
Tonga ranks 37th and Zambia ranks 40th of 164 countries.
Tonga has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | Tonga | Zambia | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 1.05 modelled data | 0.6212 modelled data | 0.4257 modelled data | Tonga |
| 1990s | 1.08 modelled data | 0.7485 modelled data | 0.3361 modelled data | Tonga |
| 2000s | 1.11 modelled data | 0.8617 modelled data | 0.2502 modelled data | Tonga |
| 2010s | 1.12 modelled data | 0.9932 modelled data | 0.1254 modelled data | Tonga |
| 2020s | 1.11 modelled data | 1.08 modelled data | 0.031 modelled data | Tonga |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher completion rate, lower secondary education, adjusted gender parity, Tonga or Zambia?
- Tonga, at 1.11 modelled data against 1.1 modelled data in Zambia as of 2025.
- What is the difference in completion rate, lower secondary education, adjusted gender parity between Tonga and Zambia?
- 0.01 modelled data, with Tonga ahead.
- How many years of comparable data are there for Tonga and Zambia?
- 45 years are reported by both, from 1981 to 2025.
- How do Tonga and Zambia rank globally for completion rate, lower secondary education, adjusted gender parity?
- Tonga ranks 37th and Zambia ranks 40th of 164 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Completion rate, lower secondary education, adjusted gender parity index (GPIA) (modelled data). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
February 2026 Data Release