How many years of comparable data are there for Bulgaria and Yemen?

5 years are reported by both, from 1999 to 2016.

Where does this data come from?

UNESCO Institute for Statistics, published as Out-of-school rate for youth of upper secondary school age, adjusted gender parity index (GPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Bulgaria vs Yemen: Out-of-school rate for youth of upper secondary school age, adjusted

Bulgaria

1.31 GPIA

in 2018

Yemen

1.33 GPIA

in 2016

Bulgaria rank

11th

Yemen rank

10th

Out-of-school rate for youth of upper secondary school age, adjusted over time

Bulgaria
Yemen

How they compare

Yemen currently reports 1.33 GPIA against 1.31 GPIA in Bulgaria, a difference of 0.02 GPIA.

Across all 5 years both countries report, Yemen has been ahead every year.

Bulgaria ranks 11th and Yemen ranks 10th of 141 countries.

Yemen has averaged higher in every one of the 2 decades both report.

Head to head by decade

Decade	Bulgaria	Yemen	Difference	Ahead
1990s	1.04 GPIA	1.48 GPIA	0.4399 GPIA	Yemen
2010s	1.21 GPIA	1.28 GPIA	0.0718 GPIA	Yemen

Averages of every year both report within each decade.

Frequently asked questions

Which has higher out-of-school rate for youth of upper secondary school age, adjusted, Bulgaria or Yemen?: Yemen, at 1.33 GPIA against 1.31 GPIA in Bulgaria as of 2016.
What is the difference in out-of-school rate for youth of upper secondary school age, adjusted between Bulgaria and Yemen?: 0.02 GPIA, with Yemen ahead.
How many years of comparable data are there for Bulgaria and Yemen?: 5 years are reported by both, from 1999 to 2016.
How do Bulgaria and Yemen rank globally for out-of-school rate for youth of upper secondary school age, adjusted?: Bulgaria ranks 11th and Yemen ranks 10th of 141 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Out-of-school rate for youth of upper secondary school age, adjusted gender parity index (GPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Bulgaria vs Yemen: Out-of-school rate for youth of upper secondary school age, adjusted. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 13 September 2026, from https://reference.statizoid.com/compare/out-of-school-rate-for-youth-of-upper-secondary-school-age-adjusted-gender-parity-index/bulgaria/yemen-rep/

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<a href="https://reference.statizoid.com/compare/out-of-school-rate-for-youth-of-upper-secondary-school-age-adjusted-gender-parity-index/bulgaria/yemen-rep/">Bulgaria vs Yemen: Out-of-school rate for youth of upper secondary school age, adjusted</a> — Statizoid

About this data

Indicator: Out-of-school rate for youth of upper secondary school age, adjusted gender parity index (GPIA)
Unit: GPIA
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 184 places, 2,951 data points, 1970–2019
Last refreshed: 04 September 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/