| 年份 | 保加利亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 2.05143 |
| 2020 | 1.87233 |
| 2019 | 1.67097 |
| 2018 | 1.47868 |
| 2017 | 1.29753 |
| 2016 | 1.09173 |
| 2015 | 0.91637 |
| 2014 | 0.79624 |
| 2013 | 0.79275 |
| 2012 | 0.75484 |
| 2011 | 0.73779 |
| 2010 | 0.76477 |
| 2009 | 0.73753 |
| 2008 | 0.63342 |
| 2007 | 0.54637 |
| 2006 | - |
| 2005 | 0.44411 |
| 2004 | 0.38031 |
| 2003 | 0.37356 |
| 2002 | 0.34524 |
| 2001 | 0.3104 |
| 2000 | 0.323 |
| 1999 | 0.34586 |
| 1998 | - |
| 1997 | 0.27374 |
| 1996 | 0.26687 |
| 1995 | - |
| 1994 | - |
| 1993 | - |
| 1992 | - |
| 1991 | - |
| 1990 | - |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |