| 年份 | 贝宁 |
|---|---|
| 2023 | - |
| 2022 | -7.6271 |
| 2021 | -6.21725 |
| 2020 | -5.08829 |
| 2019 | -4.42028 |
| 2018 | -7.24673 |
| 2017 | -7.06541 |
| 2016 | -3.77335 |
| 2015 | -7.31541 |
| 2014 | -2.40659 |
| 2013 | -4.05906 |
| 2012 | -2.94326 |
| 2011 | -5.51773 |
| 2010 | -5.28676 |
| 2009 | -4.8467 |
| 2008 | -3.49392 |
| 2007 | -5.02808 |
| 2006 | -3.65885 |
| 2005 | -2.12865 |
| 2004 | -2.87588 |
| 2003 | -4.32764 |
| 2002 | -4.3152 |
| 2001 | -8.52001 |
| 2000 | -6.13755 |
| 1999 | -8.37273 |
| 1998 | -5.40775 |
| 1997 | -4.35936 |
| 1996 | -3.52017 |
| 1995 | -9.06225 |
| 1994 | -7.74644 |
| 1993 | -10.453 |
| 1992 | -10.2624 |
| 1991 | -9.33974 |
| 1990 | -7.35758 |
| 1989 | -11.3095 |
| 1988 | -18.2794 |
| 1987 | -15.6831 |
| 1986 | -15.9396 |
| 1985 | -12.996 |
| 1984 | -11.3526 |
| 1983 | -17.8134 |
| 1982 | -22.3153 |
| 1981 | -28.0284 |
| 1980 | -21.5056 |
| 1979 | -19.5054 |
| 1978 | -18.0203 |
| 1977 | -18.6019 |
| 1976 | -18.0373 |
| 1975 | -18.8847 |
| 1974 | -15.1779 |
| 1973 | -10.2882 |
| 1972 | -12.4157 |
| 1971 | -10.0468 |
| 1970 | -9.28474 |
| 1969 | -9.65529 |
| 1968 | -9.74194 |
| 1967 | -12.1064 |
| 1966 | -9.34952 |
| 1965 | -7.63815 |
| 1964 | -7.10583 |
| 1963 | -7.80454 |
| 1962 | -6.44148 |
| 1961 | -4.95114 |
| 1960 | -5.98637 |