Nigeria vs Samoa: Primary school completion rates, adjusted gender parity index
Nigeria
1.01 index
in 2025
Samoa
1.02 index
in 2025
Nigeria rank
67th
Samoa rank
64th
Primary school completion rates, adjusted gender parity index over time
- Nigeria
- Samoa
How they compare
Samoa currently reports 1.02 index against 1.01 index in Nigeria, a difference of 0.01 index.
Across all 45 years both countries report, Samoa has been ahead every year.
Nigeria ranks 67th and Samoa ranks 64th of 165 countries.
Samoa has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | Nigeria | Samoa | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 0.8355 index | 1.03 index | 0.196 index | Samoa |
| 1990s | 0.8724 index | 1.03 index | 0.1556 index | Samoa |
| 2000s | 0.943 index | 1.02 index | 0.0817 index | Samoa |
| 2010s | 0.9892 index | 1.02 index | 0.0306 index | Samoa |
| 2020s | 1.01 index | 1.02 index | 0.0072 index | Samoa |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary school completion rates, adjusted gender parity index, Nigeria or Samoa?
- Samoa, at 1.02 index against 1.01 index in Nigeria as of 2025.
- What is the difference in primary school completion rates, adjusted gender parity index between Nigeria and Samoa?
- 0.01 index, with Samoa ahead.
- How many years of comparable data are there for Nigeria and Samoa?
- 45 years are reported by both, from 1981 to 2025.
- How do Nigeria and Samoa rank globally for primary school completion rates, adjusted gender parity index?
- Nigeria ranks 67th and Samoa ranks 64th of 165 countries.
- Where does this data come from?
- UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data, published as Primary school completion rates, adjusted gender parity index. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
An adjusted gender parity index of 1 indicates equal primary school completion rates between boys and girls. Values below 1 favor boys, and values above 1 favor girls.