What is the highest theoretical duration of pre-primary education recorded in Iran, Islamic Rep.?

The highest recorded value was 1 years in 1970.

What is the lowest theoretical duration of pre-primary education recorded in Iran, Islamic Rep.?

The lowest recorded value was 1 years in 1970.

How does Iran, Islamic Rep. rank for theoretical duration of pre-primary education?

Iran, Islamic Rep. ranks 201st out of 210 countries with data for 2019.

Is theoretical duration of pre-primary education rising or falling in Iran, Islamic Rep.?

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

Where does this Iran, Islamic Rep. data come from?

The figures come from UNESCO Institute for Statistics, published as part of Theoretical duration of pre-primary education (years). Statizoid updates them automatically from the source API.

Theoretical duration of pre-primary education in Iran, Islamic Rep.

Name: Theoretical duration of pre-primary education in Iran, Islamic Rep.
Creator: UNESCO Institute for Statistics
License: CC BY 4.0 (World Bank Open Data)

Iran, Islamic Rep.: Theoretical duration of pre-primary education was 1 years in 2019. ▬ Flat

Latest (2019)

1 years

Change on year

unchanged

World rank

201st

of 210 countries

All-time high

1 years

in 1970

All-time low

1 years

in 1970

Years of data

1970–2019

Theoretical duration of pre-primary education in Iran, Islamic Rep., 1970–2019

Source: UNESCO Institute for Statistics. Measured in years.

Analysis

The most recent figure for theoretical duration of pre-primary education in Iran, Islamic Rep. is 1 years, measured in 2019. That is the highest value across all 50 years on record.

Compared with earlier readings it is unchanged over ten years.

Over the whole period, theoretical duration of pre-primary education in Iran, Islamic Rep. peaked at 1 years in 1970 and was at its lowest, 1 years, in 1970.

Iran, Islamic Rep. ranks 201st of 210 countries on this measure, in the bottom quarter.

Averages by decade

Decade	Average	Lowest	Highest	Years
1970s	1 years	1 years	1 years	10
1980s	1 years	1 years	1 years	10
1990s	1 years	1 years	1 years	10
2000s	1 years	1 years	1 years	10
2010s	1 years	1 years	1 years	10

Countries ranked near Iran, Islamic Rep.

201 Afghanistan 1 years compare
201 Algeria 1 years compare
201 Australia 1 years compare
201 Bermuda 1 years compare
201 Canada 1 years compare
201 Guam 1 years compare
201 Nigeria 1 years compare
201 Philippines 1 years compare
201 United States Virgin Islands 1 years compare

See the full ranking of 210 places →

More reference data data for Iran, Islamic Rep.

Emission Totals - Indirect emissions (N2O) - Agricultural Soils 26.62 (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) - Manure applied to Soils 3.47 (2050)
Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 12.01 (2050)
Emission Totals - Emissions (CO2eq) (AR5) - Agricultural Soils 27,934 (2050)
Emission Totals - Emissions (N2O) - Manure Management 3.84 (2050)
Emission Totals - Emissions (CO2eq) (AR5) - IPCC Agriculture 71,943 (2050)
Emission Totals - Emissions (CO2eq) (AR5) - Enteric Fermentation 35,629 (2050)
Emission Totals - Emissions (CO2eq) (AR5) - Crop Residues 1,936 (2050)

All data for Iran, Islamic Rep. →

Frequently asked questions

What is theoretical duration of pre-primary education in Iran, Islamic Rep.?: Theoretical duration of pre-primary education in Iran, Islamic Rep. was 1 years in 2019, according to UNESCO Institute for Statistics.
What is the highest theoretical duration of pre-primary education recorded in Iran, Islamic Rep.?: The highest recorded value was 1 years in 1970.
What is the lowest theoretical duration of pre-primary education recorded in Iran, Islamic Rep.?: The lowest recorded value was 1 years in 1970.
How does Iran, Islamic Rep. rank for theoretical duration of pre-primary education?: Iran, Islamic Rep. ranks 201st out of 210 countries with data for 2019.
Is theoretical duration of pre-primary education rising or falling in Iran, Islamic Rep.?: Over the last ten years it is unchanged. The long-run trend across the full record is flat.
Where does this Iran, Islamic Rep. data come from?: The figures come from UNESCO Institute for Statistics, published as part of Theoretical duration of pre-primary education (years). Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 50 observations, free to reuse under CC BY 4.0 (World Bank Open Data).

About this data

Indicator: Theoretical duration of pre-primary education (years)
Unit: years
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 210 places, 10,271 data points, 1970–2020
Last refreshed: 07 August 2026

Number of grades (years) in pre-primary education.