What is secondary education, duration in IDA blend?

Secondary education, duration in IDA blend 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 IDA blend?

The highest recorded value was 7 years in 1970.

What is the lowest secondary education, duration recorded in IDA blend?

The lowest recorded value was 6 years in 2007.

Is secondary education, duration rising or falling in IDA blend?

Over the last ten years it is unchanged. The long-run trend across the full record is falling.

Where does this IDA blend 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.

Secondary education, duration in IDA blend

Name: Secondary education, duration in IDA blend
Creator: Data API, UN Educational, Scientific and Cultural Organization (UNESCO)
License: CC BY 4.0 (World Bank Open Data)

IDA blend: Secondary education, duration was 6 years in 2025. ▼ Falling

Latest (2025)

6 years

Change on year

unchanged

All-time high

7 years

in 1970

All-time low

6 years

in 2007

Years of data

1970–2025

Secondary education, duration in IDA blend, 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 IDA blend is 6 years, measured in 2025. That is the lowest value across all 56 years on record.

That represents a change of unchanged over ten years.

Over the whole period, secondary education, duration in IDA blend peaked at 7 years in 1970 and was at its lowest, 6 years, in 2007.

The long-run direction has been consistently falling across the 56 years of available data.

Averages by decade

Decade	Average	Lowest	Highest	Years
1970s	7 years	7 years	7 years	10
1980s	7 years	7 years	7 years	10
1990s	6.85 years	6.5 years	7 years	10
2000s	6.35 years	6 years	6.5 years	10
2010s	6 years	6 years	6 years	10
2020s	6 years	6 years	6 years	6

More education data for IDA blend

Population ages 15-64 58.4% (2025)
Population ages 0-14 37.9% (2025)
School enrollment, primary 91.1% (2024)
Primary education, teachers 2.26 million (2024)
School enrollment, primary, female 89.9% (2024)
School enrollment, primary, male 92.2% (2024)
Labor force, female 39.5% (2025)
Labor force, total 281.15 million (2025)
School enrollment, primary (gross), gender parity index 0.9318 GPI (2020)
School enrollment, secondary 51.7% (2024)

All data for IDA blend →

Frequently asked questions

What is secondary education, duration in IDA blend?: Secondary education, duration in IDA blend 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 IDA blend?: The highest recorded value was 7 years in 1970.
What is the lowest secondary education, duration recorded in IDA blend?: The lowest recorded value was 6 years in 2007.
Is secondary education, duration rising or falling in IDA blend?: Over the last ten years it is unchanged. The long-run trend across the full record is falling.
Where does this IDA blend 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

Indicator: Secondary education, duration (years)
Unit: years
Source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 255 places, 13,986 data points, 1970–2025
Last refreshed: 06 August 2026

Secondary duration refers to the number of grades (years) in secondary school.