Proportion of students at the end of lower secondary education in Iran, Islamic Republic of

Iran, Islamic Republic of: Proportion of students at the end of lower secondary education was 0.5974 NPIA in 2023. ◆ Volatile

Latest (2023)
0.5974 NPIA
World rank
42nd
of 50 countries
All-time high
1.57 NPIA
in 2015
All-time low
0.1699 NPIA
in 2007
Years of data
8
1995–2023

Proportion of students at the end of lower secondary education in Iran, Islamic Republic of, 1995–2023

00.511.51995200920231995: 1.4 NPIA1999: 1.2 NPIA2003: 1.5 NPIA2007: 0.17 NPIA2011: 0.371 NPIA2015: 1.6 NPIA2019: 0.793 NPIA2023: 0.597 NPIA

Source: UNESCO Institute for Statistics. Measured in NPIA.

Analysis

In 2023, proportion of students at the end of lower secondary education in Iran, Islamic Republic of stood at 0.5974 NPIA.

Compared with earlier readings it is up 60.9% over ten years.

Over the whole period, proportion of students at the end of lower secondary education in Iran, Islamic Republic of peaked at 1.57 NPIA in 2015 and was at its lowest, 0.1699 NPIA, in 2007.

That places Iran, Islamic Republic of 42nd out of 50 countries with data for 2023, putting it in the bottom quarter.

Proportion of students at the end of lower secondary education in Iran, Islamic Republic of, year by year

Annual values for Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted native parity index (NPIA) in Iran, Islamic Republic of, 1995 to 2023.
Year NPIA Change
1995 1.38 NPIA
1999 1.25 NPIA -9.3%
2003 1.51 NPIA +20.9%
2007 0.1699 NPIA -88.7%
2011 0.3712 NPIA +118.5%
2015 1.57 NPIA +323.1%
2019 0.7935 NPIA -49.5%
2023 0.5974 NPIA -24.7%

Averages by decade

DecadeAverage LowestHighest Years
1990s 1.31 NPIA 1.25 NPIA 1.38 NPIA 2
2000s 0.8395 NPIA 0.1699 NPIA 1.51 NPIA 2
2010s 0.9118 NPIA 0.3712 NPIA 1.57 NPIA 3
2020s 0.5974 NPIA 0.5974 NPIA 0.5974 NPIA 1

Countries ranked near Iran, Islamic Republic of

  1. 39 Slovenia 0.62 NPIA compare
  2. 40 Chile 0.6175 NPIA compare
  3. 41 Costa Rica 0.605 NPIA compare
  4. 43 Sweden 0.5968 NPIA compare
  5. 44 Finland 0.5486 NPIA compare
  6. 45 Thailand 0.5392 NPIA compare

See the full ranking of 50 places →

More education data for Iran, Islamic Republic of

All data for Iran, Islamic Republic of →

Frequently asked questions

What is proportion of students at the end of lower secondary education in Iran, Islamic Republic of?
Proportion of students at the end of lower secondary education in Iran, Islamic Republic of was 0.5974 NPIA in 2023, according to UNESCO Institute for Statistics.
What is the highest proportion of students at the end of lower secondary education recorded in Iran, Islamic Republic of?
The highest recorded value was 1.57 NPIA in 2015.
What is the lowest proportion of students at the end of lower secondary education recorded in Iran, Islamic Republic of?
The lowest recorded value was 0.1699 NPIA in 2007.
How does Iran, Islamic Republic of rank for proportion of students at the end of lower secondary education?
Iran, Islamic Republic of ranks 42nd out of 50 countries with data for 2023.
Is proportion of students at the end of lower secondary education rising or falling in Iran, Islamic Republic of?
Over the last ten years it is up 60.9%. The long-run trend across the full record is volatile.
Where does this Iran, Islamic Republic of data come from?
The figures come from UNESCO Institute for Statistics, published as part of Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted native parity index (NPIA). Statizoid updates them automatically from the source API.

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Proportion of students at the end of lower secondary education in Iran, Islamic Republic of. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 09 September 2026, from https://education.statizoid.com/stat/proportion-of-students-at-the-end-of-lower-secondary-education-achieving-at-least-a-38/iran-islamic-rep/

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About this data

Indicator
Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in mathematics, adjusted native parity index (NPIA)
Unit
NPIA
Source
UNESCO Institute for Statistics
Licence
CC BY-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
50 places, 355 data points, 1995–2023
Last refreshed

February 2026 Data Release