| 年份 | 保加利亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | - | 
| 2021 | 0.917744 | 
| 2020 | 0.618936 | 
| 2019 | 0.58027 | 
| 2018 | 0.678373 | 
| 2017 | 0.749247 | 
| 2016 | 0.526341 | 
| 2015 | 0.658724 | 
| 2014 | 0.784767 | 
| 2013 | 1.10763 | 
| 2012 | 1.60465 | 
| 2011 | 2.14267 | 
| 2010 | 1.67975 | 
| 2009 | 0.704216 | 
| 2008 | 1.9747 | 
| 2007 | 1.68647 | 
| 2006 | 1.83144 | 
| 2005 | 0.981902 | 
| 2004 | 1.13721 | 
| 2003 | 0.430572 | 
| 2002 | 0.459806 | 
| 2001 | 0.714335 | 
| 2000 | 0.68225 | 
| 1999 | 0.617207 | 
| 1998 | 0.537067 | 
| 1997 | 0.969972 | 
| 1996 | 1.00162 | 
| 1995 | 0.853351 | 
| 1994 | 1.09499 | 
| 1993 | 0.977501 | 
| 1992 | 1.38871 | 
| 1991 | 1.38922 | 
| 1990 | 1.11438 | 
| 1989 | 2.73714 | 
| 1988 | 2.97602 | 
| 1987 | 0.552177 | 
| 1986 | 0.807505 | 
| 1985 | 1.65954 | 
| 1984 | 1.29223 | 
| 1983 | 1.49283 | 
| 1982 | 2.05126 | 
| 1981 | 1.96561 | 
| 1980 | 1.84566 | 
| 1979 | - | 
| 1978 | - | 
| 1977 | - | 
| 1976 | - | 
| 1975 | - | 
| 1974 | - | 
| 1973 | - | 
| 1972 | - | 
| 1971 | - | 
| 1970 | - | 
| 1969 | - | 
| 1968 | - | 
| 1967 | - | 
| 1966 | - | 
| 1965 | - | 
| 1964 | - | 
| 1963 | - | 
| 1962 | - | 
| 1961 | - | 
| 1960 | - |