Bulgaria vs Singapore: Annual percentage change in primary energy from coal
Bulgaria
10.6%
in 2025
Singapore
12.5%
in 2025
Bulgaria rank
9th
Singapore rank
8th
Annual percentage change in primary energy from coal over time
- Bulgaria
- Singapore
How they compare
Singapore currently reports 12.5% against 10.6% in Bulgaria, a difference of 1.9%.
That makes Singapore's figure about 1.2 times Bulgaria's.
The two have swapped places 32 times across 55 shared years of data; in 1966 it was Singapore ahead.
Bulgaria ranks 9th and Singapore ranks 8th of 78 countries.
Across the 7 decades both report, Bulgaria averaged higher in 3 and Singapore in 4.
Head to head by decade
| Decade | Bulgaria | Singapore | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 5.2% | 8.8% | 3.5% | Singapore |
| 1970s | 1.8% | 11.3% | 9.5% | Singapore |
| 1980s | 1.4% | 64.9% | 63.5% | Singapore |
| 1990s | -1.1% | -17.8% | 16.7% | Bulgaria |
| 2000s | -0.1% | -0.8% | 0.7% | Bulgaria |
| 2010s | -1.6% | 144.1% | 145.7% | Singapore |
| 2020s | -3.4% | -4.2% | 0.8% | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual percentage change in primary energy from coal, Bulgaria or Singapore?
- Singapore, at 12.5% against 10.6% in Bulgaria as of 2025.
- What is the difference in annual percentage change in primary energy from coal between Bulgaria and Singapore?
- 1.9%, with Singapore ahead.
- How many years of comparable data are there for Bulgaria and Singapore?
- 55 years are reported by both, from 1966 to 2025.
- How do Bulgaria and Singapore rank globally for annual percentage change in primary energy from coal?
- Bulgaria ranks 9th and Singapore ranks 8th of 78 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as Annual percentage change in primary energy from coal. 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.