| 年份 | 保加利亚 |
|---|---|
| 2023 | - |
| 2022 | 23.637 |
| 2021 | 23.975 |
| 2020 | 24.314 |
| 2019 | 24.653 |
| 2018 | 24.992 |
| 2017 | 25.331 |
| 2016 | 25.671 |
| 2015 | 26.01 |
| 2014 | 26.349 |
| 2013 | 26.687 |
| 2012 | 27.025 |
| 2011 | 27.362 |
| 2010 | 27.698 |
| 2009 | 28.037 |
| 2008 | 28.378 |
| 2007 | 28.722 |
| 2006 | 29.068 |
| 2005 | 29.416 |
| 2004 | 29.767 |
| 2003 | 30.121 |
| 2002 | 30.476 |
| 2001 | 30.834 |
| 2000 | 31.101 |
| 1999 | 31.323 |
| 1998 | 31.546 |
| 1997 | 31.769 |
| 1996 | 31.993 |
| 1995 | 32.218 |
| 1994 | 32.443 |
| 1993 | 32.67 |
| 1992 | 32.944 |
| 1991 | 33.283 |
| 1990 | 33.623 |
| 1989 | 33.965 |
| 1988 | 34.308 |
| 1987 | 34.654 |
| 1986 | 35.001 |
| 1985 | 35.41 |
| 1984 | 35.901 |
| 1983 | 36.397 |
| 1982 | 36.896 |
| 1981 | 37.397 |
| 1980 | 37.9 |
| 1979 | 38.784 |
| 1978 | 39.674 |
| 1977 | 40.572 |
| 1976 | 41.474 |
| 1975 | 42.438 |
| 1974 | 43.481 |
| 1973 | 44.529 |
| 1972 | 45.581 |
| 1971 | 46.64 |
| 1970 | 47.7 |
| 1969 | 48.966 |
| 1968 | 50.232 |
| 1967 | 51.501 |
| 1966 | 52.767 |
| 1965 | 54.245 |
| 1964 | 56.013 |
| 1963 | 57.77 |
| 1962 | 59.506 |
| 1961 | 61.218 |
| 1960 | 62.9 |