| 年份 | 保加利亚  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 4.66224 | 
| 2021 | 4.70932 | 
| 2020 | 4.76137 | 
| 2019 | 4.8212 | 
| 2018 | 4.86974 | 
| 2017 | 4.91392 | 
| 2016 | 4.97895 | 
| 2015 | 5.07674 | 
| 2014 | 5.21703 | 
| 2013 | 5.36819 | 
| 2012 | 5.4765 | 
| 2011 | 5.52565 | 
| 2010 | 5.49619 | 
| 2009 | 5.37277 | 
| 2008 | 5.19583 | 
| 2007 | 5.01772 | 
| 2006 | 4.85991 | 
| 2005 | 4.75313 | 
| 2004 | 4.69162 | 
| 2003 | 4.61008 | 
| 2002 | 4.50175 | 
| 2001 | 4.43831 | 
| 2000 | 4.4064 | 
| 1999 | 4.41126 | 
| 1998 | 4.53667 | 
| 1997 | 4.76348 | 
| 1996 | 5.01526 | 
| 1995 | 5.31193 | 
| 1994 | 5.65451 | 
| 1993 | 5.98004 | 
| 1992 | 6.26619 | 
| 1991 | 6.50906 | 
| 1990 | 6.67814 | 
| 1989 | 6.77522 | 
| 1988 | 6.84153 | 
| 1987 | 6.90089 | 
| 1986 | 6.96113 | 
| 1985 | 7.03882 | 
| 1984 | 7.16882 | 
| 1983 | 7.32689 | 
| 1982 | 7.50469 | 
| 1981 | 7.71979 | 
| 1980 | 7.93538 | 
| 1979 | 8.12164 | 
| 1978 | 8.24691 | 
| 1977 | 8.26151 | 
| 1976 | 8.22593 | 
| 1975 | 8.21834 | 
| 1974 | 8.23384 | 
| 1973 | 8.2954 | 
| 1972 | 8.34554 | 
| 1971 | 8.30675 | 
| 1970 | 8.21634 | 
| 1969 | 8.0986 | 
| 1968 | 7.97885 | 
| 1967 | 7.95607 | 
| 1966 | 8.06244 | 
| 1965 | 8.21776 | 
| 1964 | 8.34964 | 
| 1963 | 8.45248 | 
| 1962 | 8.56722 | 
| 1961 | 8.69674 | 
| 1960 | 8.83254 |