Bulgaria vs USSR: Annual percentage change in primary energy from fossil fuels
Bulgaria
3.0%
in 2025
USSR
2.8%
in 1984
Bulgaria rank
12th
USSR rank
13th
Annual percentage change in primary energy from fossil fuels over time
- Bulgaria
- USSR
How they compare
Bulgaria currently reports 3.0% against 2.8% in USSR, a difference of 0.2%.
The two have swapped places 5 times across 19 shared years of data; in 1966 it was Bulgaria ahead.
Bulgaria ranks 12th and USSR ranks 13th of 76 countries.
Across the 3 decades both report, Bulgaria averaged higher in 2 and USSR in 1.
Head to head by decade
| Decade | Bulgaria | USSR | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 12.2% | 4.8% | 7.5% | Bulgaria |
| 1970s | 4.9% | 4.5% | 0.4% | Bulgaria |
| 1980s | 0.2% | 2.2% | 2.0% | USSR |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual percentage change in primary energy from fossil fuels, Bulgaria or USSR?
- Bulgaria, at 3.0% against 2.8% in USSR as of 2025.
- What is the difference in annual percentage change in primary energy from fossil fuels between Bulgaria and USSR?
- 0.2%, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and USSR?
- 19 years are reported by both, from 1966 to 1984.
- How do Bulgaria and USSR rank globally for annual percentage change in primary energy from fossil fuels?
- Bulgaria ranks 12th and USSR ranks 13th of 76 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 fossil fuels. 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.