| 年份 | 贝宁 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 2.30442 |
| 2020 | 2.42798 |
| 2019 | 2.468 |
| 2018 | 2.60831 |
| 2017 | 4.09835 |
| 2016 | 4.45372 |
| 2015 | 4.3003 |
| 2014 | 3.70462 |
| 2013 | 3.56117 |
| 2012 | 3.92163 |
| 2011 | 3.47893 |
| 2010 | 3.42233 |
| 2009 | 3.70292 |
| 2008 | 3.64875 |
| 2007 | 3.62691 |
| 2006 | 3.04876 |
| 2005 | 3.07234 |
| 2004 | 3.12543 |
| 2003 | 4.14025 |
| 2002 | 3.30281 |
| 2001 | 3.08483 |
| 2000 | 3.26095 |
| 1999 | 3.14793 |
| 1998 | 7.52825 |
| 1997 | 8.01233 |
| 1996 | 8.30238 |
| 1995 | 9.20305 |
| 1994 | 9.16849 |
| 1993 | 5.75414 |
| 1992 | 8.98936 |
| 1991 | 7.16257 |
| 1990 | 7.96245 |
| 1989 | 8.27975 |
| 1988 | 7.04025 |
| 1987 | 7.14629 |
| 1986 | 7.58342 |
| 1985 | 8.35898 |
| 1984 | 9.87297 |
| 1983 | 9.23123 |
| 1982 | 10.4777 |
| 1981 | 8.44352 |
| 1980 | 7.31176 |
| 1979 | 7.16735 |
| 1978 | 9.87506 |
| 1977 | 11.9754 |
| 1976 | 7.17067 |
| 1975 | 8.24812 |
| 1974 | 7.30053 |
| 1973 | 7.26544 |
| 1972 | 5.34084 |
| 1971 | 5.79302 |
| 1970 | 6.70734 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |