| 年份 | 保加利亚 |
|---|---|
| 2023 | - |
| 2022 | 21.9971 |
| 2021 | 22.0098 |
| 2020 | 22.0024 |
| 2019 | 21.9761 |
| 2018 | 21.9112 |
| 2017 | 21.798 |
| 2016 | 21.6745 |
| 2015 | 21.5822 |
| 2014 | 21.5025 |
| 2013 | 21.302 |
| 2012 | 20.9439 |
| 2011 | 20.5921 |
| 2010 | 20.2694 |
| 2009 | 19.9547 |
| 2008 | 19.7543 |
| 2007 | 19.6887 |
| 2006 | 19.7548 |
| 2005 | 20.0205 |
| 2004 | 20.4856 |
| 2003 | 21.0871 |
| 2002 | 21.7509 |
| 2001 | 22.4442 |
| 2000 | 23.1225 |
| 1999 | 23.7913 |
| 1998 | 24.5616 |
| 1997 | 25.4228 |
| 1996 | 26.2658 |
| 1995 | 27.0975 |
| 1994 | 27.9674 |
| 1993 | 28.8014 |
| 1992 | 29.5896 |
| 1991 | 30.3543 |
| 1990 | 31.0139 |
| 1989 | 31.5838 |
| 1988 | 32.0419 |
| 1987 | 32.3188 |
| 1986 | 32.549 |
| 1985 | 32.8738 |
| 1984 | 33.3376 |
| 1983 | 33.895 |
| 1982 | 34.3206 |
| 1981 | 34.5797 |
| 1980 | 34.8019 |
| 1979 | 34.9575 |
| 1978 | 35.0378 |
| 1977 | 35.0355 |
| 1976 | 34.9786 |
| 1975 | 34.8977 |
| 1974 | 34.7349 |
| 1973 | 34.5937 |
| 1972 | 34.6164 |
| 1971 | 34.7193 |
| 1970 | 34.8068 |
| 1969 | 34.8298 |
| 1968 | 34.8701 |
| 1967 | 35.1168 |
| 1966 | 35.5284 |
| 1965 | 35.9975 |
| 1964 | 36.5856 |
| 1963 | 37.3072 |
| 1962 | 38.0663 |
| 1961 | 38.7851 |
| 1960 | 39.4 |