How many years of comparable data are there for Chad and Early-demographic dividend?

7 years are reported by both, from 1972 to 2016.

Where does this data come from?

Stat Bulk Data Download Service, UN Educational, Scientific and Cultural Organization (UNESCO), published as Pupil-teacher ratio, preprimary. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Chad vs Early-demographic dividend: Pupil-teacher ratio, preprimary

Chad

31.93

in 2016

Early-demographic dividend

19.77

in 2018

Chad rank

14th

Early-demographic dividend rank

15th

Pupil-teacher ratio, preprimary over time

Chad
Early-demographic dividend

How they compare

Chad currently reports 31.93 against 19.77 in Early-demographic dividend, a difference of 12.16.

That makes Chad's figure about 1.6 times Early-demographic dividend's.

The two have swapped places 1 time across 7 shared years of data; in 1972 it was Early-demographic dividend ahead.

Chad ranks 14th and Early-demographic dividend ranks 15th of 182 countries.

Across the 3 decades both report, Chad averaged higher in 2 and Early-demographic dividend in 1.

Head to head by decade

Decade	Chad	Early-demographic dividend	Difference	Ahead
1970s	23.04	25.24	2.2	Early-demographic dividend
1990s	24.97	21.34	3.63	Chad
2010s	33.04	19.58	13.46	Chad

Averages of every year both report within each decade.

Frequently asked questions

Which has higher pupil-teacher ratio, preprimary, Chad or Early-demographic dividend?: Chad, at 31.93 against 19.77 in Early-demographic dividend as of 2016.
What is the difference in pupil-teacher ratio, preprimary between Chad and Early-demographic dividend?: 12.16, with Chad ahead.
How many years of comparable data are there for Chad and Early-demographic dividend?: 7 years are reported by both, from 1972 to 2016.
How do Chad and Early-demographic dividend rank globally for pupil-teacher ratio, preprimary?: Chad ranks 14th and Early-demographic dividend ranks 15th of 182 countries.
Where does this data come from?: Stat Bulk Data Download Service, UN Educational, Scientific and Cultural Organization (UNESCO), published as Pupil-teacher ratio, preprimary. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Chad vs Early-demographic dividend: Pupil-teacher ratio, preprimary. Statizoid, drawing on Stat Bulk Data Download Service, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 18 August 2026, from https://education.statizoid.com/compare/pupil-teacher-ratio-preprimary/chad/early-demographic-dividend/

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About this data

Indicator: Pupil-teacher ratio, preprimary
Source: Stat Bulk Data Download Service, UN Educational, Scientific and Cultural Organization (UNESCO)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 225 places, 6,028 data points, 1970–2019
Last refreshed: 06 August 2026

Preprimary school pupil-teacher ratio is the average number of pupils per teacher in preprimary school.