| 年份 | 保加利亚 |
|---|---|
| 2023 | - |
| 2022 | 51.5068 |
| 2021 | 51.5042 |
| 2020 | 51.4946 |
| 2019 | 51.4938 |
| 2018 | 51.5093 |
| 2017 | 51.5212 |
| 2016 | 51.526 |
| 2015 | 51.5347 |
| 2014 | 51.5479 |
| 2013 | 51.5609 |
| 2012 | 51.5809 |
| 2011 | 51.6085 |
| 2010 | 51.6399 |
| 2009 | 51.6769 |
| 2008 | 51.716 |
| 2007 | 51.7525 |
| 2006 | 51.7825 |
| 2005 | 51.8036 |
| 2004 | 51.8168 |
| 2003 | 51.8257 |
| 2002 | 51.8324 |
| 2001 | 51.8313 |
| 2000 | 51.8173 |
| 1999 | 51.7922 |
| 1998 | 51.7486 |
| 1997 | 51.6935 |
| 1996 | 51.6357 |
| 1995 | 51.5669 |
| 1994 | 51.4895 |
| 1993 | 51.4115 |
| 1992 | 51.3398 |
| 1991 | 51.2795 |
| 1990 | 51.223 |
| 1989 | 51.1648 |
| 1988 | 51.1091 |
| 1987 | 51.054 |
| 1986 | 50.9991 |
| 1985 | 50.9449 |
| 1984 | 50.8931 |
| 1983 | 50.8441 |
| 1982 | 50.8017 |
| 1981 | 50.7672 |
| 1980 | 50.7342 |
| 1979 | 50.7038 |
| 1978 | 50.6793 |
| 1977 | 50.6579 |
| 1976 | 50.6397 |
| 1975 | 50.6247 |
| 1974 | 50.6126 |
| 1973 | 50.603 |
| 1972 | 50.5941 |
| 1971 | 50.5854 |
| 1970 | 50.5802 |
| 1969 | 50.5779 |
| 1968 | 50.577 |
| 1967 | 50.5803 |
| 1966 | 50.5898 |
| 1965 | 50.6067 |
| 1964 | 50.6312 |
| 1963 | 50.667 |
| 1962 | 50.7109 |
| 1961 | 50.7588 |
| 1960 | 50.8095 |