Bulgaria vs Tonga: Survival rate to Grade 4 of primary education, gender parity index

Bulgaria
0.9981 GPI
in 2017
Tonga
0.9976 GPI
in 2005
Bulgaria rank
119th
Tonga rank
122nd

Survival rate to Grade 4 of primary education, gender parity index over time

  • Bulgaria
  • Tonga
00.250.50.751197719972017

How they compare

Bulgaria currently reports 0.9981 GPI against 0.9976 GPI in Tonga, a difference of 0.0005 GPI.

The two have swapped places 1 time across 5 shared years of data; in 1985 it was Bulgaria ahead.

Bulgaria ranks 119th and Tonga ranks 122nd of 164 countries.

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

Head to head by decade

Decade Bulgaria Tonga Difference Ahead
1980s 0.9906 GPI 0.9206 GPI 0.07 GPI Bulgaria
1990s 0.9938 GPI 0.9618 GPI 0.032 GPI Bulgaria
2000s 1.01 GPI 1.03 GPI 0.0224 GPI Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher survival rate to grade 4 of primary education, gender parity index, Bulgaria or Tonga?
Bulgaria, at 0.9981 GPI against 0.9976 GPI in Tonga as of 2017.
What is the difference in survival rate to grade 4 of primary education, gender parity index between Bulgaria and Tonga?
0.0005 GPI, with Bulgaria ahead.
How many years of comparable data are there for Bulgaria and Tonga?
5 years are reported by both, from 1985 to 2005.
How do Bulgaria and Tonga rank globally for survival rate to grade 4 of primary education, gender parity index?
Bulgaria ranks 119th and Tonga ranks 122nd of 164 countries.
Where does this data come from?
UNESCO Institute for Statistics, published as Survival rate to Grade 4 of primary education, gender parity index (GPI). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Bulgaria vs Tonga: Survival rate to Grade 4 of primary education, gender parity index. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 11 September 2026, from https://education.statizoid.com/compare/survival-rate-to-grade-4-of-primary-education-gender-parity-index-gpi/bulgaria/tonga/

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About this data

Indicator
Survival rate to Grade 4 of primary education, gender parity index (GPI)
Unit
GPI
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
164 places, 3,247 data points, 1970–2019
Last refreshed

Ratio of female survival rate to grade 4 to the male survival rate to grade 4. It is calculated by dividing the female value for the indicator by the male value for the indicator. A 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.