Iran, Islamic Republic of vs Sao Tome and Principe: School life expectancy, primary, both sexes
School life expectancy, primary, both sexes over time
- Iran, Islamic Republic of
- Sao Tome and Principe
How they compare
Iran, Islamic Republic of currently reports 6.57 years against 6.5 years in Sao Tome and Principe, a difference of 0.07 years.
The two have swapped places 10 times across 37 shared years of data; in 1971 it was Iran, Islamic Republic of ahead.
Iran, Islamic Republic of ranks 65th and Sao Tome and Principe ranks 68th of 199 countries.
Sao Tome and Principe has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | Iran, Islamic Republic of | Sao Tome and Principe | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 4.58 years | 5.1 years | 0.514 years | Sao Tome and Principe |
| 1980s | 5.07 years | 5.66 years | 0.5884 years | Sao Tome and Principe |
| 1990s | 5.23 years | 5.4 years | 0.1726 years | Sao Tome and Principe |
| 2000s | 5.04 years | 7.47 years | 2.42 years | Sao Tome and Principe |
| 2010s | 5.98 years | 6.72 years | 0.733 years | Sao Tome and Principe |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher school life expectancy, primary, both sexes, Iran, Islamic Republic of or Sao Tome and Principe?
- Iran, Islamic Republic of, at 6.57 years against 6.5 years in Sao Tome and Principe as of 2017.
- What is the difference in school life expectancy, primary, both sexes between Iran, Islamic Republic of and Sao Tome and Principe?
- 0.07 years, with Iran, Islamic Republic of ahead.
- How many years of comparable data are there for Iran, Islamic Republic of and Sao Tome and Principe?
- 37 years are reported by both, from 1971 to 2017.
- How do Iran, Islamic Republic of and Sao Tome and Principe rank globally for school life expectancy, primary, both sexes?
- Iran, Islamic Republic of ranks 65th and Sao Tome and Principe ranks 68th of 199 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as School life expectancy, primary, both sexes (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
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.