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

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, both sexes (%). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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

Chad

39.2%

in 2019

IDA only

21.4%

in 2019

Chad rank

6th

IDA only rank

9th

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

Chad
IDA only

How they compare

Chad currently reports 39.2% against 21.4% in IDA only, a difference of 17.8%.

That makes Chad's figure about 1.8 times IDA only's.

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

Chad ranks 6th and IDA only ranks 9th of 149 countries.

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

Head to head by decade

Decade	Chad	IDA only	Difference	Ahead
1990s	59.6%	42.4%	17.2%	Chad
2000s	53.9%	37.5%	16.4%	Chad
2010s	39.2%	22.2%	17.0%	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 only?: Chad, at 39.2% against 21.4% in IDA only as of 2019.
What is the difference in out-of-school rate for children and adolescents of primary and lower between Chad and IDA only?: 17.8%, with Chad ahead.
How many years of comparable data are there for Chad and IDA only?: 11 years are reported by both, from 1998 to 2019.
How do Chad and IDA only rank globally for out-of-school rate for children and adolescents of primary and lower?: Chad ranks 6th and IDA only ranks 9th of 149 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, both sexes (%). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Chad vs IDA only: 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/chad/ida-only/

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About this data

Indicator: Out-of-school rate for children and adolescents of primary and lower secondary school age, both sexes (%)
Unit: %
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 192 places, 4,615 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/