Bulgaria vs Sierra Leone: Red list index (Our World)
Bulgaria
0.92
in 2025
Sierra Leone
0.92
in 2025
Bulgaria rank
61st
Sierra Leone rank
61st
Red list index (Our World) over time
- Bulgaria
- Sierra Leone
How they compare
Bulgaria currently reports 0.92 against 0.92 in Sierra Leone, a difference of 0.
The two have swapped places 2 times across 46 shared years of data; in 1980 it was Sierra Leone ahead.
Bulgaria ranks 61st and Sierra Leone ranks 61st of 247 countries.
Bulgaria has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | Bulgaria | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 0.93 | 0.93 | 0 | — |
| 1990s | 0.929 | 0.928 | 0.001 | Bulgaria |
| 2000s | 0.92 | 0.92 | 0 | — |
| 2010s | 0.92 | 0.92 | 0 | — |
| 2020s | 0.92 | 0.92 | 0 | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher red list index, Bulgaria or Sierra Leone?
- Bulgaria, at 0.92 against 0.92 in Sierra Leone as of 2025.
- What is the difference in red list index between Bulgaria and Sierra Leone?
- 0, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Sierra Leone?
- 46 years are reported by both, from 1980 to 2025.
- How do Bulgaria and Sierra Leone rank globally for red list index?
- Bulgaria ranks 61st and Sierra Leone ranks 61st of 247 countries.
- Where does this data come from?
- Our World in Data, published as Red list index. Statizoid refreshes it automatically from the source and publishes the full history for both places.