Bulgaria vs Sierra Leone: Academic freedom index
Bulgaria
0.85
in 2025
Sierra Leone
0.862
in 2025
Bulgaria rank
35th
Sierra Leone rank
32nd
Academic freedom index over time
- Bulgaria
- Sierra Leone
How they compare
Sierra Leone currently reports 0.862 against 0.85 in Bulgaria, a difference of 0.012.
The two have swapped places 5 times across 126 shared years of data; in 1900 it was Bulgaria ahead.
Bulgaria ranks 35th and Sierra Leone ranks 32nd of 174 countries.
Across the 13 decades both report, Bulgaria averaged higher in 7 and Sierra Leone in 6.
Head to head by decade
| Decade | Bulgaria | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 1900s | 0.5995 | 0.478 | 0.1215 | Bulgaria |
| 1910s | 0.6208 | 0.478 | 0.1428 | Bulgaria |
| 1920s | 0.5508 | 0.478 | 0.0728 | Bulgaria |
| 1930s | 0.5389 | 0.478 | 0.0609 | Bulgaria |
| 1940s | 0.2741 | 0.478 | 0.2039 | Sierra Leone |
| 1950s | 0.0827 | 0.4764 | 0.3937 | Sierra Leone |
| 1960s | 0.105 | 0.5879 | 0.4829 | Sierra Leone |
| 1970s | 0.113 | 0.4446 | 0.3316 | Sierra Leone |
| 1980s | 0.1427 | 0.432 | 0.2893 | Sierra Leone |
| 1990s | 0.8843 | 0.4682 | 0.4161 | Bulgaria |
| 2000s | 0.9362 | 0.8156 | 0.1206 | Bulgaria |
| 2010s | 0.9123 | 0.8592 | 0.0531 | Bulgaria |
| 2020s | 0.8538 | 0.8622 | 0.0083 | Sierra Leone |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher academic freedom index, Bulgaria or Sierra Leone?
- Sierra Leone, at 0.862 against 0.85 in Bulgaria as of 2025.
- What is the difference in academic freedom index between Bulgaria and Sierra Leone?
- 0.012, with Sierra Leone ahead.
- How many years of comparable data are there for Bulgaria and Sierra Leone?
- 126 years are reported by both, from 1900 to 2025.
- How do Bulgaria and Sierra Leone rank globally for academic freedom index?
- Bulgaria ranks 35th and Sierra Leone ranks 32nd of 174 countries.
- Where does this data come from?
- Our World in Data, published as Academic freedom index. Statizoid refreshes it automatically from the source and publishes the full history for both places.