| 年份 | 保加利亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | 1.18092 |
| 2016 | 1.4255 |
| 2015 | 1.47147 |
| 2014 | 1.54083 |
| 2013 | 1.70687 |
| 2012 | 2.0009 |
| 2011 | 1.94373 |
| 2010 | 2.10139 |
| 2009 | 2.77966 |
| 2008 | 3.41888 |
| 2007 | 4.24359 |
| 2006 | 5.57759 |
| 2005 | 6.01298 |
| 2004 | 5.90333 |
| 2003 | 5.96958 |
| 2002 | 5.93899 |
| 2001 | 5.60466 |
| 2000 | 4.96117 |
| 1999 | 4.60365 |
| 1998 | 4.85111 |
| 1997 | 4.21454 |
| 1996 | 4.57185 |
| 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 | - |