How many years of comparable data are there for Chad and Eritrea?

8 years are reported by both, from 1999 to 2018.

Where does this data come from?

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

Chad vs Eritrea: Out-of-school rate for adolescents of lower secondary school age

Chad

1.21 GPIA

in 2019

Eritrea

1.2 GPIA

in 2018

Chad rank

29th

Eritrea rank

30th

Out-of-school rate for adolescents of lower secondary school age over time

Chad
Eritrea

How they compare

Chad currently reports 1.21 GPIA against 1.2 GPIA in Eritrea, a difference of 0.01 GPIA.

The two have swapped places 2 times across 8 shared years of data; in 1999 it was Chad ahead.

Chad ranks 29th and Eritrea ranks 30th of 133 countries.

Across the 3 decades both report, Chad averaged higher in 2 and Eritrea in 1.

Head to head by decade

Decade	Chad	Eritrea	Difference	Ahead
1990s	1.25 GPIA	1.19 GPIA	0.065 GPIA	Chad
2000s	1.28 GPIA	1.24 GPIA	0.0414 GPIA	Chad
2010s	1.23 GPIA	1.24 GPIA	0.006 GPIA	Eritrea

Averages of every year both report within each decade.

Frequently asked questions

Which has higher out-of-school rate for adolescents of lower secondary school age, Chad or Eritrea?: Chad, at 1.21 GPIA against 1.2 GPIA in Eritrea as of 2019.
What is the difference in out-of-school rate for adolescents of lower secondary school age between Chad and Eritrea?: 0.01 GPIA, with Chad ahead.
How many years of comparable data are there for Chad and Eritrea?: 8 years are reported by both, from 1999 to 2018.
How do Chad and Eritrea rank globally for out-of-school rate for adolescents of lower secondary school age?: Chad ranks 29th and Eritrea ranks 30th of 133 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Out-of-school rate for adolescents of lower secondary school age, adjusted gender parity index (GPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

Share, cite or embed this page

Cite this page

Chad vs Eritrea: Out-of-school rate for adolescents of lower secondary school age. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 07 September 2026, from https://reference.statizoid.com/compare/out-of-school-rate-for-adolescents-of-lower-secondary-school-age-adjusted-gender-parity/chad/eritrea/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under CC BY 4.0 (World Bank Open Data); please keep the attribution.

<a href="https://reference.statizoid.com/compare/out-of-school-rate-for-adolescents-of-lower-secondary-school-age-adjusted-gender-parity/chad/eritrea/">Chad vs Eritrea: Out-of-school rate for adolescents of lower secondary school age</a> — Statizoid

About this data

Indicator: Out-of-school rate for adolescents of lower 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: 176 places, 2,962 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/