Chad vs Sao Tome and Principe: Wittgenstein Projection: Mean years of schooling. Age 25+. Total

Chad
10
in 2100
Sao Tome and Principe
9.5
in 2100
Chad rank
161st
Sao Tome and Principe rank
163rd

Wittgenstein Projection: Mean years of schooling. Age 25+. Total over time

  • Chad
  • Sao Tome and Principe
246810201020552100

How they compare

Chad currently reports 10 against 9.5 in Sao Tome and Principe, a difference of 0.5.

That makes Chad's figure about 1.1 times Sao Tome and Principe's.

The two have swapped places 1 time across 19 shared years of data; in 2010 it was Sao Tome and Principe ahead.

Chad ranks 161st and Sao Tome and Principe ranks 163rd of 166 countries.

Across the 10 decades both report, Chad averaged higher in 2 and Sao Tome and Principe in 8.

Head to head by decade

Decade Chad Sao Tome and Principe Difference Ahead
2010s 2.1 3.8 1.7 Sao Tome and Principe
2020s 2.8 4.85 2.05 Sao Tome and Principe
2030s 3.6 5.85 2.25 Sao Tome and Principe
2040s 4.5 6.6 2.1 Sao Tome and Principe
2050s 5.35 7.25 1.9 Sao Tome and Principe
2060s 6.35 7.85 1.5 Sao Tome and Principe
2070s 7.25 8.4 1.15 Sao Tome and Principe
2080s 8.35 8.8 0.45 Sao Tome and Principe
2090s 9.3 9.2 0.1 Chad
2100s 10 9.5 0.5 Chad

Averages of every year both report within each decade.

Frequently asked questions

Which has higher wittgenstein projection: mean years of schooling. age 25+. total, Chad or Sao Tome and Principe?
Chad, at 10 against 9.5 in Sao Tome and Principe as of 2100.
What is the difference in wittgenstein projection: mean years of schooling. age 25+. total between Chad and Sao Tome and Principe?
0.5, with Chad ahead.
How many years of comparable data are there for Chad and Sao Tome and Principe?
19 years are reported by both, from 2010 to 2100.
How do Chad and Sao Tome and Principe rank globally for wittgenstein projection: mean years of schooling. age 25+. total?
Chad ranks 161st and Sao Tome and Principe ranks 163rd of 166 countries.
Where does this data come from?
Wittgenstein Centre for Demography and Global Human Capital: http://www.oeaw.ac.at/vid/dataexplorer/, published as Wittgenstein Projection: Mean years of schooling. Age 25+. Total. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Chad vs Sao Tome and Principe: Wittgenstein Projection: Mean years of schooling. Age 25+. Total. Statizoid, drawing on Wittgenstein Centre for Demography and Global Human Capital: http://www.oeaw.ac.at/vid/dataexplorer/. Retrieved 07 September 2026, from https://reference.statizoid.com/compare/wittgenstein-projection-mean-years-of-schooling-age-25-total/chad/sao-tome-and-principe/

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About this data

Indicator
Wittgenstein Projection: Mean years of schooling. Age 25+. Total
Source
Wittgenstein Centre for Demography and Global Human Capital: http://www.oeaw.ac.at/vid/dataexplorer/
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
167 places, 3,173 data points, 2010–2100
Last refreshed

Mean number of years spent in school by age group and gender. Projections are based on collected census and survey data for the base year (around 2010) and the Medium Shared Socioeconomic Pathways (SSP2) projection model. The SSP2 is a middle-of-the-road scenario that combines medium fertility with medium mortality, medium migration, and the Global Education Trend (GET) education scenario. For more information and other projection models, consult the Wittgenstein Centre for Demography and Global Human Capital's website: http://www.oeaw.ac.at/vid/dataexplorer/