Denmark vs Iran: Annual percentage change in primary energy from hydropower
Denmark
-65.4%
in 2025
Iran
-36.6%
in 2025
Denmark rank
71st
Iran rank
68th
Annual percentage change in primary energy from hydropower over time
- Denmark
- Iran
How they compare
Iran currently reports -36.6% against -65.4% in Denmark, a difference of 28.8%.
The two have swapped places 30 times across 60 shared years of data; in 1966 it was Iran ahead.
Denmark ranks 71st and Iran ranks 68th of 71 countries.
Across the 7 decades both report, Denmark averaged higher in 2 and Iran in 5.
Head to head by decade
| Decade | Denmark | Iran | Difference | Ahead |
|---|---|---|---|---|
| 1960s | -2.8% | 7.6% | 10.3% | Iran |
| 1970s | 3.5% | 10.5% | 7.0% | Iran |
| 1980s | -1.3% | 2.8% | 4.1% | Iran |
| 1990s | 5.0% | 1.8% | 3.2% | Denmark |
| 2000s | -2.9% | 9.9% | 12.8% | Iran |
| 2010s | 0.0% | 31.1% | 31.1% | Iran |
| 2020s | -5.2% | -10.3% | 5.1% | Denmark |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual percentage change in primary energy from hydropower, Denmark or Iran?
- Iran, at -36.6% against -65.4% in Denmark as of 2025.
- What is the difference in annual percentage change in primary energy from hydropower between Denmark and Iran?
- 28.8%, with Iran ahead.
- How many years of comparable data are there for Denmark and Iran?
- 60 years are reported by both, from 1966 to 2025.
- How do Denmark and Iran rank globally for annual percentage change in primary energy from hydropower?
- Denmark ranks 71st and Iran ranks 68th of 71 countries.
- Where does this data come from?
- Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as Annual percentage change in primary energy from hydropower. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Percentage change in total energy supply relative to the previous year.