Education · Middle income
Yearly data from 1999 to 2025, from the World Bank.
Middle income's preprimary education, duration (years) was 4 in 2025, the latest year in the World Bank's World Development Indicators. That is up 14.29% from 3.5 in 2015 (1.34% a year on average, compounded).
| Value | Year | |
|---|---|---|
| Latest | 4 | 2025 |
| Five years earlier | 3.5 | 2020 |
| Ten years earlier | 3.5 | 2015 |
| Highest | 4 | 2013 |
| Lowest | 3 | 1999 |
| Average since 2016 | 3.7 | 2016–2025 |
| First recorded | 3 | 1999 |
Over five years it is up 14.29% from 3.5 in 2020 (2.71% a year on average, compounded). Since 1999 it is up 33.33% from 3 in 1999 (1.11% a year on average, compounded).
In 2025, Middle income's preprimary education, duration (years) did not change 0 on 2024 (from 4 to 4).
Across the 25 yearly changes before that (2000 to 2024), the average change was +0.04 and a typical year strayed about 0.25 from that (the standard deviation). This year's change was 0.2 standard deviations below that average, so it was an ordinary year: it sits within the range of normal year-to-year movement.
On record, the biggest yearly rise was 1 in 2013 and the biggest yearly fall was 0.5 in 2014. The numbers show how large and when, not why; for the cause, look at what happened in that country in those years.
From 2016 to 2025 the straight-line trend is upward, about 0.07 a year. A straight line explains 73% of the movement over 10 observed years.
Worked out from the yearly values above. How the checks work: standard deviation, z-scores and straight-line trends.
See how every economy compares in the full ranking.
| Value | Year | |
|---|---|---|
| Middle income | 4 | 2025 |
| World | 4 | 2025 |
Preprimary duration refers to the number of grades (years) in preprimary school.
Limitations: The presence of national legislation does not guarantee that countries will implement it effectively, nor does it ensure that parents will take advantage of the provisions available for their children.
Regional and income-group figures are computed by the World Bank as a median.
| Year | Preprimary education, duration (years) |
|---|---|
| 2025 | 4 |
| 2024 | 4 |
| 2023 | 4 |
| 2022 | 4 |
| 2021 | 3.5 |
| 2020 | 3.5 |
| 2019 | 3.5 |
| 2018 | 3.5 |
| 2017 | 3.5 |
| 2016 | 3.5 |
| 2015 | 3.5 |
| 2014 | 3.5 |
| 2013 | 4 |
| 2012 | 3 |
| 2011 | 3 |
| 2010 | 3 |
| 2009 | 3 |
| 2008 | 3 |
| 2007 | 3 |
| 2006 | 3 |
| 2005 | 3 |
| 2004 | 3 |
| 2003 | 3 |
| 2002 | 3 |
| 2001 | 3 |
| 2000 | 3 |
| 1999 | 3 |
Every indicator for Middle income is on the Middle income data page.
World Bank, World Development Indicators, indicator SE.PRE.DURS, licensed CC BY 4.0. Original source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO), uri: https://databrowser.uis.unesco.org/resources, note: The data are obtained through the UIS API. Figures are fetched from the World Bank API and refreshed monthly; see the series on data.worldbank.org. The full definition and method are in the World Bank's metadata glossary. Comparisons use the same World Bank release.
Want to ask your own questions of data like this? Try AnalyzeIt: upload a file or ask about public data in plain words, and every figure comes with its working.
Legal entity
Devansh Yadav
Moradabad, Uttar Pradesh
Governing law: Courts at Moradabad, Uttar Pradesh
Phone: +91 8433475698
Legal: legal@analyzeit.in