School life expectancy, pre-primary, both sexes in Iran
Iran: School life expectancy, pre-primary, both sexes was 0.5379 years in 2016. ◆ Volatile
School life expectancy, pre-primary, both sexes in Iran, 1971–2016
Source: UNESCO Institute for Statistics. Measured in years.
Analysis
Iran recorded 0.5379 years for school life expectancy, pre-primary, both sexes in 2016. That is the highest value across all 45 years on record.
The figure is up 2.5% on the previous year and up 7.5% over ten years.
Over the whole period, school life expectancy, pre-primary, both sexes in Iran peaked at 0.5379 years in 2016 and was at its lowest, 0.022 years, in 1971.
Iran ranks 164th of 191 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
School life expectancy, pre-primary, both sexes in Iran, year by year
| Year | years | Change |
|---|---|---|
| 1971 | 0.022 years | — |
| 1972 | 0.0237 years | +7.4% |
| 1973 | 0.0237 years | +0.2% |
| 1974 | 0.0436 years | +84.1% |
| 1975 | 0.0925 years | +112.1% |
| 1976 | 0.1787 years | +93.1% |
| 1977 | 0.21 years | +17.5% |
| 1978 | 0.2264 years | +7.8% |
| 1979 | 0.2415 years | +6.7% |
| 1980 | 0.2122 years | -12.1% |
| 1981 | 0.1483 years | -30.1% |
| 1982 | 0.1596 years | +7.6% |
| 1983 | 0.1366 years | -14.4% |
| 1984 | 0.1471 years | +7.7% |
| 1985 | 0.0532 years | -63.9% |
| 1986 | 0.0692 years | +30.0% |
| 1987 | 0.0752 years | +8.7% |
| 1988 | 0.0844 years | +12.3% |
| 1989 | 0.0981 years | +16.2% |
| 1990 | 0.1163 years | +18.6% |
| 1991 | 0.1205 years | +3.6% |
| 1992 | 0.1327 years | +10.1% |
| 1993 | 0.089 years | -32.9% |
| 1994 | 0.0709 years | -20.4% |
| 1995 | 0.0775 years | +9.4% |
| 1997 | 0.1159 years | +49.5% |
| 1998 | 0.1599 years | +38.0% |
| 1999 | 0.1504 years | -6.0% |
| 2000 | 0.1847 years | +22.8% |
| 2001 | 0.2227 years | +20.6% |
| 2002 | 0.2682 years | +20.4% |
| 2003 | 0.3431 years | +28.0% |
| 2004 | 0.3801 years | +10.8% |
| 2005 | 0.4447 years | +17.0% |
| 2006 | 0.5005 years | +12.5% |
| 2007 | 0.5129 years | +2.5% |
| 2008 | 0.5057 years | -1.4% |
| 2009 | 0.4115 years | -18.6% |
| 2010 | 0.4016 years | -2.4% |
| 2011 | 0.4061 years | +1.1% |
| 2012 | 0.3489 years | -14.1% |
| 2013 | 0.3853 years | +10.4% |
| 2014 | 0.4341 years | +12.7% |
| 2015 | 0.5246 years | +20.8% |
| 2016 | 0.5379 years | +2.5% |
Iran compared with similar countries
- Iran's 0.5379 years is below the median for upper middle income countries, which is 1.8 years, 30% of the median. (54 countries reporting)
- Iran's 0.5379 years is below the median for Middle East, North Africa, Afghanistan & Pakistan, which is 1.09 years, 49% of the median. (23 countries reporting)
Biggest year-on-year movements
Years where School life expectancy, pre-primary, both sexes in Iran changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1975 | +112.1% | 0.0436 years | 0.0925 years |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 0.118 years | 0.022 years | 0.2415 years | 9 |
| 1980s | 0.1184 years | 0.0532 years | 0.2122 years | 10 |
| 1990s | 0.1148 years | 0.0709 years | 0.1599 years | 9 |
| 2000s | 0.3774 years | 0.1847 years | 0.5129 years | 10 |
| 2010s | 0.4341 years | 0.3489 years | 0.5379 years | 7 |
Countries ranked near Iran
More reference data data for Iran
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 3.47 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 12.01 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 26.62 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 1.34 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 26.62 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 11.62 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 3.84 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 46.54 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 109.46 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 7.3 (2050)
Frequently asked questions
- What is school life expectancy, pre-primary, both sexes in Iran?
- School life expectancy, pre-primary, both sexes in Iran was 0.5379 years in 2016, according to UNESCO Institute for Statistics.
- What is the highest school life expectancy, pre-primary, both sexes recorded in Iran?
- The highest recorded value was 0.5379 years in 2016.
- What is the lowest school life expectancy, pre-primary, both sexes recorded in Iran?
- The lowest recorded value was 0.022 years in 1971.
- How does Iran rank for school life expectancy, pre-primary, both sexes?
- Iran ranks 164th out of 191 countries with data for 2016.
- Is school life expectancy, pre-primary, both sexes rising or falling in Iran?
- Over the last ten years it is up 7.5%. The long-run trend across the full record is volatile.
- Where does this Iran data come from?
- The figures come from UNESCO Institute for Statistics, published as part of School life expectancy, pre-primary, both sexes (years). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 45 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
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.