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

11 years are reported by both, from 1998 to 2019.

Where does this data come from?

UNESCO Institute for Statistics, published as Out-of-school rate for children and adolescents of primary and lower secondary school age, female (%). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Chad vs IDA blend: Out-of-school rate for children and adolescents of primary and lower

Chad

47.5%

in 2019

IDA blend

28.6%

in 2019

Chad rank

4th

IDA blend rank

1st

Out-of-school rate for children and adolescents of primary and lower over time

Chad
IDA blend

How they compare

Chad currently reports 47.5% against 28.6% in IDA blend, a difference of 18.9%.

That makes Chad's figure about 1.7 times IDA blend's.

Across all 11 years both countries report, Chad has been ahead every year.

Chad ranks 4th and IDA blend ranks 1st of 148 countries.

Chad has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Chad	IDA blend	Difference	Ahead
1990s	71.2%	45.6%	25.7%	Chad
2000s	64.8%	42.3%	22.4%	Chad
2010s	48.1%	29.4%	18.7%	Chad

Averages of every year both report within each decade.

Frequently asked questions

Which has higher out-of-school rate for children and adolescents of primary and lower, Chad or IDA blend?: Chad, at 47.5% against 28.6% in IDA blend as of 2019.
What is the difference in out-of-school rate for children and adolescents of primary and lower between Chad and IDA blend?: 18.9%, with Chad ahead.
How many years of comparable data are there for Chad and IDA blend?: 11 years are reported by both, from 1998 to 2019.
How do Chad and IDA blend rank globally for out-of-school rate for children and adolescents of primary and lower?: Chad ranks 4th and IDA blend ranks 1st of 148 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Out-of-school rate for children and adolescents of primary and lower secondary school age, female (%). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Chad vs IDA blend: Out-of-school rate for children and adolescents of primary and lower. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 13 September 2026, from https://reference.statizoid.com/compare/out-of-school-rate-for-children-and-adolescents-of-primary-and-lower-secondary-school-age-2/chad/ida-blend/

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<a href="https://reference.statizoid.com/compare/out-of-school-rate-for-children-and-adolescents-of-primary-and-lower-secondary-school-age-2/chad/ida-blend/">Chad vs IDA blend: Out-of-school rate for children and adolescents of primary and lower</a> — Statizoid

About this data

Indicator: Out-of-school rate for children and adolescents of primary and lower secondary school age, female (%)
Unit: %
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 191 places, 4,340 data points, 1970–2019
Last refreshed: 04 September 2026

Proportion of children and adolescents in the official age range for primary and lower secondary education who are not enrolled in primary or lower secondary education. To calculate the indicator, the number of students of the official age for primary and lower secondary education enrolled in primary or lower secondary education is subtracted from the total population of primary and lower secondary education. The result is expressed as a percentage of the population of the official age for primary and lower secondary education. For more information, consult the UNESCO Institute of Statistics website: http://www.uis.unesco.org/Education/