China vs Iran, Islamic Republic of: Theoretical duration of upper secondary education (years), annual
China
0 % change on previous year
in 2025
Iran, Islamic Republic of
0 % change on previous year
in 2025
China rank
1st
Iran, Islamic Republic of rank
1st
Theoretical duration of upper secondary education (years), annual over time
- China
- Iran, Islamic Republic of
How they compare
China currently reports 0 % change on previous year against 0 % change on previous year in Iran, Islamic Republic of, a difference of 0 % change on previous year.
The two have swapped places 4 times across 55 shared years of data; in 1971 it was Iran, Islamic Republic of ahead.
China ranks 1st and Iran, Islamic Republic of ranks 1st of 221 countries.
China has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | China | Iran, Islamic Republic of | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 5.56 % change on previous year | 3.7 % change on previous year | 1.85 % change on previous year | China |
| 1980s | 0 % change on previous year | 0 % change on previous year | 0 % change on previous year | — |
| 1990s | 0 % change on previous year | 0 % change on previous year | 0 % change on previous year | — |
| 2000s | 0 % change on previous year | 0 % change on previous year | 0 % change on previous year | — |
| 2010s | 0 % change on previous year | -2.5 % change on previous year | 2.5 % change on previous year | China |
| 2020s | 0 % change on previous year | 0 % change on previous year | 0 % change on previous year | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of upper secondary education (years), annual, China or Iran, Islamic Republic of?
- China, at 0 % change on previous year against 0 % change on previous year in Iran, Islamic Republic of as of 2025.
- What is the difference in theoretical duration of upper secondary education (years), annual between China and Iran, Islamic Republic of?
- 0 % change on previous year, with China ahead.
- How many years of comparable data are there for China and Iran, Islamic Republic of?
- 55 years are reported by both, from 1971 to 2025.
- How do China and Iran, Islamic Republic of rank globally for theoretical duration of upper secondary education (years), annual?
- China ranks 1st and Iran, Islamic Republic of ranks 1st of 221 countries.
- Where does this data come from?
- Statizoid (derived), published as Theoretical duration of upper secondary education (years), annual growth rate. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
The year-on-year percentage change in Theoretical duration of upper secondary education (years). Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.