Bulgaria vs Viet Nam: Annual percentage change in primary energy from fossil fuels
Bulgaria
3.0%
in 2025
Viet Nam
2.7%
in 2025
Bulgaria rank
12th
Viet Nam rank
15th
Annual percentage change in primary energy from fossil fuels over time
- Bulgaria
- Viet Nam
How they compare
Bulgaria currently reports 3.0% against 2.7% in Viet Nam, a difference of 0.3%.
That makes Bulgaria's figure about 1.1 times Viet Nam's.
The two have swapped places 13 times across 44 shared years of data; in 1982 it was Viet Nam ahead.
Bulgaria ranks 12th and Viet Nam ranks 15th of 76 countries.
Viet Nam has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | Bulgaria | Viet Nam | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 0.3% | 2.7% | 2.4% | Viet Nam |
| 1990s | -5.6% | 9.6% | 15.2% | Viet Nam |
| 2000s | -0.6% | 10.7% | 11.3% | Viet Nam |
| 2010s | -0.0% | 10.0% | 10.1% | Viet Nam |
| 2020s | -1.5% | 3.1% | 4.6% | Viet Nam |
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 Viet Nam?
- Bulgaria, at 3.0% against 2.7% in Viet Nam as of 2025.
- What is the difference in annual percentage change in primary energy from fossil fuels between Bulgaria and Viet Nam?
- 0.3%, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Viet Nam?
- 44 years are reported by both, from 1982 to 2025.
- How do Bulgaria and Viet Nam rank globally for annual percentage change in primary energy from fossil fuels?
- Bulgaria ranks 12th and Viet Nam ranks 15th 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.