Bulgaria vs Iran: Annual change primary energy source
Bulgaria
1.34
in 2025
Iran
1.23
in 2025
Bulgaria rank
29th
Iran rank
30th
Annual change primary energy source over time
- Bulgaria
- Iran
How they compare
Bulgaria currently reports 1.34 against 1.23 in Iran, a difference of 0.11.
That makes Bulgaria's figure about 1.1 times Iran's.
The two have swapped places 5 times across 60 shared years of data; in 1966 it was Iran ahead.
Bulgaria ranks 29th and Iran ranks 30th of 79 countries.
Bulgaria has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Bulgaria | Iran | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0 | 0 | 0 | — |
| 1970s | 0 | 0 | 0 | — |
| 1980s | 0 | 0 | 0 | — |
| 1990s | 0 | 0 | 0 | — |
| 2000s | 0.0003 | 0 | 0.0003 | Bulgaria |
| 2010s | 0.1414 | 0.051 | 0.0904 | Bulgaria |
| 2020s | 0.9018 | 0.282 | 0.6198 | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change primary energy source, Bulgaria or Iran?
- Bulgaria, at 1.34 against 1.23 in Iran as of 2025.
- What is the difference in annual change primary energy source between Bulgaria and Iran?
- 0.11, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Iran?
- 60 years are reported by both, from 1966 to 2025.
- How do Bulgaria and Iran rank globally for annual change primary energy source?
- Bulgaria ranks 29th and Iran ranks 30th of 79 countries.
- Where does this data come from?
- Our World in Data, published as Annual change primary energy source. Statizoid refreshes it automatically from the source and publishes the full history for both places.