How many years of comparable data are there for Iran, Islamic Republic of and Latvia?

11 years are reported by both, from 1994 to 2016.

Where does this data come from?

Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Persistence to last grade of primary, total (% of cohort). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Latvia: Persistence to last grade of primary, total

Iran, Islamic Republic of

94.7%

in 2022

Latvia

94.7%

in 2023

Iran, Islamic Republic of rank

75th

Latvia rank

74th

Persistence to last grade of primary, total over time

Iran, Islamic Republic of
Latvia

How they compare

Latvia currently reports 94.7% against 94.7% in Iran, Islamic Republic of, a difference of 0.0%.

The two have swapped places 5 times across 11 shared years of data; in 1994 it was Iran, Islamic Republic of ahead.

Iran, Islamic Republic of ranks 75th and Latvia ranks 74th of 179 countries.

Across the 3 decades both report, Iran, Islamic Republic of averaged higher in 2 and Latvia in 1.

Head to head by decade

Decade	Iran, Islamic Republic of	Latvia	Difference	Ahead
1990s	90.4%	75.3%	15.1%	Iran, Islamic Republic of
2000s	93.6%	96.3%	2.7%	Latvia
2010s	97.1%	94.3%	2.8%	Iran, Islamic Republic of

Averages of every year both report within each decade.

Frequently asked questions

Which has higher persistence to last grade of primary, total, Iran, Islamic Republic of or Latvia?: Latvia, at 94.7% against 94.7% in Iran, Islamic Republic of as of 2023.
What is the difference in persistence to last grade of primary, total between Iran, Islamic Republic of and Latvia?: 0.0%, with Latvia ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Latvia?: 11 years are reported by both, from 1994 to 2016.
How do Iran, Islamic Republic of and Latvia rank globally for persistence to last grade of primary, total?: Iran, Islamic Republic of ranks 75th and Latvia ranks 74th of 179 countries.
Where does this data come from?: Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Persistence to last grade of primary, total (% of cohort). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Latvia: Persistence to last grade of primary, total. Statizoid, drawing on Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 16 September 2026, from https://education.statizoid.com/compare/persistence-to-last-grade-of-primary-total-percent-of-cohort/iran-islamic-rep/latvia/

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About this data

Indicator: Persistence to last grade of primary, total (% of cohort)
Unit: % of cohort
Source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 224 places, 6,364 data points, 1970–2023
Last refreshed: 03 September 2026

Persistence to last grade of primary is the percentage of children enrolled in the first grade of primary school who eventually reach the last grade of primary education. The estimate is based on the reconstructed cohort method.