Least developed countries vs Lower middle income: School life expectancy, primary and lower secondary, female

Least developed countries
7.85 years
in 2019
Lower middle income
7.91 years
in 2019
Least developed countries rank
33rd
Lower middle income rank
31st

School life expectancy, primary and lower secondary, female over time

  • Least developed countries
  • Lower middle income
02468199320062019

How they compare

Lower middle income currently reports 7.91 years against 7.85 years in Least developed countries, a difference of 0.06 years.

Across all 23 years both countries report, Lower middle income has been ahead every year.

Least developed countries ranks 33rd and Lower middle income ranks 31st of 43 groups.

Lower middle income has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade Least developed countries Lower middle income Difference Ahead
1990s 4.86 years 6.15 years 1.29 years Lower middle income
2000s 6.25 years 7.03 years 0.7775 years Lower middle income
2010s 7.66 years 8.05 years 0.3931 years Lower middle income

Averages of every year both report within each decade.

Frequently asked questions

Which has higher school life expectancy, primary and lower secondary, female, Least developed countries or Lower middle income?
Lower middle income, at 7.91 years against 7.85 years in Least developed countries as of 2019.
What is the difference in school life expectancy, primary and lower secondary, female between Least developed countries and Lower middle income?
0.06 years, with Lower middle income ahead.
How many years of comparable data are there for Least developed countries and Lower middle income?
23 years are reported by both, from 1997 to 2019.
How do Least developed countries and Lower middle income rank globally for school life expectancy, primary and lower secondary, female?
Least developed countries ranks 33rd and Lower middle income ranks 31st of 43 groups.
Where does this data come from?
UNESCO Institute for Statistics, published as School life expectancy, primary and lower secondary, female (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Least developed countries vs Lower middle income: School life expectancy, primary and lower secondary, female. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 25 August 2026, from https://reference.statizoid.com/compare/school-life-expectancy-primary-and-lower-secondary-female-years/least-developed-countries-un-classification/lower-middle-income/

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About this data

Indicator
School life expectancy, primary and lower secondary, female (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
233 places, 4,492 data points, 1981–2020
Last refreshed

Number of years a person of school entrance age can expect to spend within the specified levels 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.