Secondary education, duration (years) in Middle income
Middle income: Secondary education, duration (years) was 6 years in 2025. ▼ Falling
Secondary education, duration in Middle income, 1970–2025
Source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Measured in years.
Analysis
The most recent figure for secondary education, duration in Middle income is 6 years, measured in 2025. That is the lowest value across all 56 years on record.
The figure is unchanged over ten years.
Over the whole period, secondary education, duration in Middle income peaked at 7 years in 1970 and was at its lowest, 6 years, in 1971.
Middle income ranks 11th of 46 groups on this measure, in the top quarter.
The long-run direction has been consistently falling across the 56 years of available data.
Secondary education, duration (years) in Middle income, year by year
| Year | years | Change |
|---|---|---|
| 1970 | 7 years | — |
| 1971 | 6 years | -14.3% |
| 1972 | 7 years | +16.7% |
| 1973 | 7 years | +0.0% |
| 1974 | 7 years | +0.0% |
| 1975 | 7 years | +0.0% |
| 1976 | 7 years | +0.0% |
| 1977 | 7 years | +0.0% |
| 1978 | 6.5 years | -7.1% |
| 1979 | 6.5 years | +0.0% |
| 1980 | 6.5 years | +0.0% |
| 1981 | 6 years | -7.7% |
| 1982 | 6 years | +0.0% |
| 1983 | 6 years | +0.0% |
| 1984 | 6 years | +0.0% |
| 1985 | 6 years | +0.0% |
| 1986 | 6 years | +0.0% |
| 1987 | 6 years | +0.0% |
| 1988 | 6 years | +0.0% |
| 1989 | 6 years | +0.0% |
| 1990 | 6 years | +0.0% |
| 1991 | 6 years | +0.0% |
| 1992 | 6 years | +0.0% |
| 1993 | 6 years | +0.0% |
| 1994 | 6 years | +0.0% |
| 1995 | 6 years | +0.0% |
| 1996 | 6 years | +0.0% |
| 1997 | 6 years | +0.0% |
| 1998 | 6 years | +0.0% |
| 1999 | 6 years | +0.0% |
| 2000 | 6 years | +0.0% |
| 2001 | 6 years | +0.0% |
| 2002 | 6 years | +0.0% |
| 2003 | 6 years | +0.0% |
| 2004 | 6 years | +0.0% |
| 2005 | 6 years | +0.0% |
| 2006 | 6 years | +0.0% |
| 2007 | 6 years | +0.0% |
| 2008 | 6 years | +0.0% |
| 2009 | 6 years | +0.0% |
| 2010 | 6 years | +0.0% |
| 2011 | 6 years | +0.0% |
| 2012 | 6 years | +0.0% |
| 2013 | 6 years | +0.0% |
| 2014 | 6 years | +0.0% |
| 2015 | 6 years | +0.0% |
| 2016 | 6 years | +0.0% |
| 2017 | 6 years | +0.0% |
| 2018 | 6 years | +0.0% |
| 2019 | 6 years | +0.0% |
| 2020 | 6 years | +0.0% |
| 2021 | 6 years | +0.0% |
| 2022 | 6 years | +0.0% |
| 2023 | 6 years | +0.0% |
| 2024 | 6 years | +0.0% |
| 2025 | 6 years | +0.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 6.8 years | 6 years | 7 years | 10 |
| 1980s | 6.05 years | 6 years | 6.5 years | 10 |
| 1990s | 6 years | 6 years | 6 years | 10 |
| 2000s | 6 years | 6 years | 6 years | 10 |
| 2010s | 6 years | 6 years | 6 years | 10 |
| 2020s | 6 years | 6 years | 6 years | 6 |
More education data for Middle income
- Primary education, pupils, annual growth rate 1.71 % change on previous year (2024)
- Population ages 0-14 24.4% (2025)
- Population ages 15-64 66.5% (2025)
- Primary education, teachers, gaps filled 25.11 million (2024)
- Secondary education, pupils, gaps filled 510.99 million (2024)
- Primary education, duration (years), annual growth rate 0 % change on previous year (2025)
- Primary education, pupils, gaps filled 589.09 million (2024)
- Primary education, pupils, per capita 0.0986 units per person (2024)
- Primary education, pupils, per unit of GDP 0 units per US$ of GDP (2024)
- Secondary education, duration (years), annual growth rate 0 % change on previous year (2025)
Frequently asked questions
- What is secondary education, duration in Middle income?
- Secondary education, duration in Middle income was 6 years in 2025, according to Data API, UN Educational, Scientific and Cultural Organization (UNESCO).
- What is the highest secondary education, duration recorded in Middle income?
- The highest recorded value was 7 years in 1970.
- What is the lowest secondary education, duration recorded in Middle income?
- The lowest recorded value was 6 years in 1971.
- How does Middle income rank for secondary education, duration?
- Middle income ranks 11th out of 46 groups with data for 2025.
- Is secondary education, duration rising or falling in Middle income?
- Over the last ten years it is unchanged. The long-run trend across the full record is falling.
- Where does this Middle income data come from?
- The figures come from Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as part of Secondary education, duration (years). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 56 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
About this data
Secondary duration refers to the number of grades (years) in secondary school.