Chad vs Guinea-Bissau: School life expectancy, secondary, both sexes

Chad
1.48 years
in 2019
Guinea-Bissau
1.71 years
in 2006
Chad rank
194th
Guinea-Bissau rank
191st

School life expectancy, secondary, both sexes over time

  • Chad
  • Guinea-Bissau
00.511.5197119952019

How they compare

Guinea-Bissau currently reports 1.71 years against 1.48 years in Chad, a difference of 0.23 years.

That makes Guinea-Bissau's figure about 1.2 times Chad's.

The two have swapped places 4 times across 10 shared years of data; in 1971 it was Guinea-Bissau ahead.

Chad ranks 194th and Guinea-Bissau ranks 191st of 198 countries.

Across the 3 decades both report, Chad averaged higher in 1 and Guinea-Bissau in 2.

Head to head by decade

Decade Chad Guinea-Bissau Difference Ahead
1970s 0.1721 years 0.2177 years 0.0455 years Guinea-Bissau
1980s 0.4131 years 0.4064 years 0.0067 years Chad
2000s 1.02 years 1.44 years 0.4185 years Guinea-Bissau

Averages of every year both report within each decade.

Frequently asked questions

Which has higher school life expectancy, secondary, both sexes, Chad or Guinea-Bissau?
Guinea-Bissau, at 1.71 years against 1.48 years in Chad as of 2006.
What is the difference in school life expectancy, secondary, both sexes between Chad and Guinea-Bissau?
0.23 years, with Guinea-Bissau ahead.
How many years of comparable data are there for Chad and Guinea-Bissau?
10 years are reported by both, from 1971 to 2006.
How do Chad and Guinea-Bissau rank globally for school life expectancy, secondary, both sexes?
Chad ranks 194th and Guinea-Bissau ranks 191st of 198 countries.
Where does this data come from?
UNESCO Institute for Statistics, published as School life expectancy, secondary, both sexes (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Chad vs Guinea-Bissau: School life expectancy, secondary, both sexes. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 17 August 2026, from https://reference.statizoid.com/compare/school-life-expectancy-secondary-both-sexes-years/chad/guinea-bissau/

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About this data

Indicator
School life expectancy, secondary, both sexes (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
198 places, 6,439 data points, 1970–2020
Last refreshed

Number of years a person of school entrance age can expect to spend within the specified level of education. For a child of a certain age a, the school life expectancy is calculated as the sum of the age specific enrolment rates for the levels of education specified. The part of the enrolment that is not distributed by age is divided by the school-age population for the level of education they are enrolled in, and multiplied by the duration of that level of education. The result is then added to the sum of the age-specific enrolment rates. A relatively high SLE indicates greater probability for children to spend more years in education and higher overall retention within the education system. It must be noted that the expected number of years does not necessarily coincide with the expected number of grades of education completed, because of repetition. Since school life expectancy is an average based on participation in different levels of education, the expected number of years of schooling may be pulled down by the magnitude of children who never go to school. Those children who are in school may benefit from many more years of education than the average.