| 年份 | 保加利亚 |
|---|---|
| 2023 | - |
| 2022 | 6.57993 |
| 2021 | 6.48984 |
| 2020 | 6.43478 |
| 2019 | 6.47089 |
| 2018 | 6.54653 |
| 2017 | 6.6492 |
| 2016 | 6.79993 |
| 2015 | 6.94935 |
| 2014 | 7.07586 |
| 2013 | 7.13821 |
| 2012 | 7.03956 |
| 2011 | 6.86517 |
| 2010 | 6.75283 |
| 2009 | 6.68376 |
| 2008 | 6.67767 |
| 2007 | 6.67352 |
| 2006 | 6.58649 |
| 2005 | 6.4708 |
| 2004 | 6.3724 |
| 2003 | 6.29025 |
| 2002 | 6.30758 |
| 2001 | 6.44228 |
| 2000 | 6.58085 |
| 1999 | 6.64525 |
| 1998 | 6.65728 |
| 1997 | 6.68092 |
| 1996 | 6.70852 |
| 1995 | 6.72872 |
| 1994 | 6.75809 |
| 1993 | 6.80937 |
| 1992 | 6.85061 |
| 1991 | 6.85116 |
| 1990 | 6.86347 |
| 1989 | 6.96146 |
| 1988 | 7.09804 |
| 1987 | 7.22118 |
| 1986 | 7.35269 |
| 1985 | 7.41994 |
| 1984 | 7.32103 |
| 1983 | 7.09858 |
| 1982 | 6.84285 |
| 1981 | 6.57792 |
| 1980 | 6.33812 |
| 1979 | 6.18069 |
| 1978 | 6.11326 |
| 1977 | 6.12731 |
| 1976 | 6.22583 |
| 1975 | 6.40751 |
| 1974 | 6.66603 |
| 1973 | 6.95529 |
| 1972 | 7.20328 |
| 1971 | 7.38018 |
| 1970 | 7.48751 |
| 1969 | 7.52974 |
| 1968 | 7.54599 |
| 1967 | 7.58617 |
| 1966 | 7.68182 |
| 1965 | 7.84895 |
| 1964 | 8.07344 |
| 1963 | 8.28343 |
| 1962 | 8.39781 |
| 1961 | 8.41616 |
| 1960 | 8.33636 |