| 年份 | 保加利亚 |
|---|---|
| 2023 | - |
| 2022 | 7.46803 |
| 2021 | 7.41417 |
| 2020 | 7.37874 |
| 2019 | 7.42291 |
| 2018 | 7.49945 |
| 2017 | 7.58912 |
| 2016 | 7.72951 |
| 2015 | 7.87587 |
| 2014 | 7.99556 |
| 2013 | 8.04324 |
| 2012 | 7.92426 |
| 2011 | 7.7268 |
| 2010 | 7.59456 |
| 2009 | 7.50263 |
| 2008 | 7.46826 |
| 2007 | 7.42771 |
| 2006 | 7.29046 |
| 2005 | 7.11871 |
| 2004 | 6.96459 |
| 2003 | 6.83737 |
| 2002 | 6.81881 |
| 2001 | 6.92769 |
| 2000 | 7.04364 |
| 1999 | 7.07937 |
| 1998 | 7.05298 |
| 1997 | 7.04095 |
| 1996 | 7.03916 |
| 1995 | 7.0295 |
| 1994 | 7.03457 |
| 1993 | 7.06956 |
| 1992 | 7.09116 |
| 1991 | 7.0659 |
| 1990 | 7.04345 |
| 1989 | 7.0785 |
| 1988 | 7.15041 |
| 1987 | 7.22707 |
| 1986 | 7.30867 |
| 1985 | 7.33589 |
| 1984 | 7.23263 |
| 1983 | 7.01173 |
| 1982 | 6.74561 |
| 1981 | 6.4815 |
| 1980 | 6.24611 |
| 1979 | 6.08927 |
| 1978 | 6.02844 |
| 1977 | 6.05667 |
| 1976 | 6.1666 |
| 1975 | 6.36371 |
| 1974 | 6.64777 |
| 1973 | 6.9699 |
| 1972 | 7.25988 |
| 1971 | 7.48501 |
| 1970 | 7.63786 |
| 1969 | 7.71549 |
| 1968 | 7.74879 |
| 1967 | 7.78446 |
| 1966 | 7.86794 |
| 1965 | 8.02468 |
| 1964 | 8.23486 |
| 1963 | 8.43008 |
| 1962 | 8.53161 |
| 1961 | 8.5361 |
| 1960 | 8.44704 |