| 年份 | 保加利亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 6.71938 | 
| 2021 | 6.7218 | 
| 2020 | 6.70983 | 
| 2019 | 6.72408 | 
| 2018 | 6.76847 | 
| 2017 | 6.77541 | 
| 2016 | 6.70448 | 
| 2015 | 6.62796 | 
| 2014 | 6.60215 | 
| 2013 | 6.58252 | 
| 2012 | 6.56327 | 
| 2011 | 6.5702 | 
| 2010 | 6.51084 | 
| 2009 | 6.3246 | 
| 2008 | 6.06737 | 
| 2007 | 5.79765 | 
| 2006 | 5.53848 | 
| 2005 | 5.31571 | 
| 2004 | 5.17347 | 
| 2003 | 5.10605 | 
| 2002 | 5.09847 | 
| 2001 | 5.14582 | 
| 2000 | 5.2525 | 
| 1999 | 5.41741 | 
| 1998 | 5.59361 | 
| 1997 | 5.72775 | 
| 1996 | 5.79584 | 
| 1995 | 5.79383 | 
| 1994 | 5.73813 | 
| 1993 | 5.65774 | 
| 1992 | 5.58729 | 
| 1991 | 5.55364 | 
| 1990 | 5.56135 | 
| 1989 | 5.59563 | 
| 1988 | 5.61825 | 
| 1987 | 5.59879 | 
| 1986 | 5.54984 | 
| 1985 | 5.45096 | 
| 1984 | 5.23886 | 
| 1983 | 4.92025 | 
| 1982 | 4.55856 | 
| 1981 | 4.20741 | 
| 1980 | 3.93142 | 
| 1979 | 3.84085 | 
| 1978 | 3.95905 | 
| 1977 | 4.17137 | 
| 1976 | 4.40406 | 
| 1975 | 4.6428 | 
| 1974 | 4.82167 | 
| 1973 | 4.9052 | 
| 1972 | 4.95545 | 
| 1971 | 4.97795 | 
| 1970 | 4.93928 | 
| 1969 | 4.87128 | 
| 1968 | 4.79254 | 
| 1967 | 4.69315 | 
| 1966 | 4.58243 | 
| 1965 | 4.45824 | 
| 1964 | 4.32382 | 
| 1963 | 4.19617 | 
| 1962 | 4.07193 | 
| 1961 | 3.94185 | 
| 1960 | 3.81079 |