Iran, Islamic Republic of vs Tanzania, United Republic of: Repetition rate in lower secondary general education (all grades)

Iran, Islamic Republic of
1.9%
in 2022
Tanzania, United Republic of
2.0%
in 2023
Iran, Islamic Republic of rank
83rd
Tanzania, United Republic of rank
81st

Repetition rate in lower secondary general education (all grades) over time

  • Iran, Islamic Republic of
  • Tanzania, United Republic of
02.557.51012.5200020112023

How they compare

Tanzania, United Republic of currently reports 2.0% against 1.9% in Iran, Islamic Republic of, a difference of 0.1%.

That makes Tanzania, United Republic of's figure about 1.1 times Iran, Islamic Republic of's.

The two have swapped places 2 times across 6 shared years of data; in 2001 it was Iran, Islamic Republic of ahead.

Iran, Islamic Republic of ranks 83rd and Tanzania, United Republic of ranks 81st of 174 countries.

Iran, Islamic Republic of has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade Iran, Islamic Republic of Tanzania, United Republic of Difference Ahead
2000s 7.2% 2.5% 4.7% Iran, Islamic Republic of
2010s 1.8% 1.3% 0.5% Iran, Islamic Republic of
2020s 1.9% 1.3% 0.6% Iran, Islamic Republic of

Averages of every year both report within each decade.

Frequently asked questions

Which has higher repetition rate in lower secondary general education (all grades), Iran, Islamic Republic of or Tanzania, United Republic of?
Tanzania, United Republic of, at 2.0% against 1.9% in Iran, Islamic Republic of as of 2023.
What is the difference in repetition rate in lower secondary general education (all grades) between Iran, Islamic Republic of and Tanzania, United Republic of?
0.1%, with Tanzania, United Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Tanzania, United Republic of?
6 years are reported by both, from 2001 to 2022.
How do Iran, Islamic Republic of and Tanzania, United Republic of rank globally for repetition rate in lower secondary general education (all grades)?
Iran, Islamic Republic of ranks 83rd and Tanzania, United Republic of ranks 81st of 174 countries.
Where does this data come from?
UNESCO Institute for Statistics, published as Repetition rate in lower secondary general education (all grades), both sexes (%). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Tanzania, United Republic of: Repetition rate in lower secondary general education (all grades). Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 15 September 2026, from https://education.statizoid.com/compare/repetition-rate-in-lower-secondary-general-education-all-grades-both-sexes-percent-2/iran-islamic-rep/tanzania/

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About this data

Indicator
Repetition rate in lower secondary general education (all grades), both sexes (%)
Unit
%
Source
UNESCO Institute for Statistics
Licence
CC BY-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
174 places, 2,774 data points, 1970–2024
Last refreshed

February 2026 Data Release