| 年份 | 贝宁 |
|---|---|
| 2023 | - |
| 2022 | 21.6532 |
| 2021 | 20.9188 |
| 2020 | 19.8725 |
| 2019 | 29.6305 |
| 2018 | 27.2742 |
| 2017 | 27.2056 |
| 2016 | 27.6068 |
| 2015 | 24.7205 |
| 2014 | 31.4308 |
| 2013 | 27.5706 |
| 2012 | 23.8967 |
| 2011 | 20.8497 |
| 2010 | 23.072 |
| 2009 | 19.928 |
| 2008 | 22.1407 |
| 2007 | 22.0429 |
| 2006 | 18.0579 |
| 2005 | 18.4836 |
| 2004 | 18.5135 |
| 2003 | 18.6443 |
| 2002 | 19.7266 |
| 2001 | 19.8686 |
| 2000 | 20.6053 |
| 1999 | 23.0095 |
| 1998 | 27.0929 |
| 1997 | 27.1761 |
| 1996 | 26.4988 |
| 1995 | 27.3689 |
| 1994 | 28.327 |
| 1993 | 22.4644 |
| 1992 | 23.2391 |
| 1991 | 21.0025 |
| 1990 | 19.1813 |
| 1989 | 13.4954 |
| 1988 | 13.8037 |
| 1987 | 15.2675 |
| 1986 | 16.6759 |
| 1985 | 23.6526 |
| 1984 | 19.5794 |
| 1983 | 13.7643 |
| 1982 | 17.771 |
| 1981 | 15.9305 |
| 1980 | 15.8165 |
| 1979 | 17.5164 |
| 1978 | 16.5251 |
| 1977 | 16.1789 |
| 1976 | 12.9912 |
| 1975 | 14.5282 |
| 1974 | 14.3168 |
| 1973 | 15.662 |
| 1972 | 14.3844 |
| 1971 | 17.7858 |
| 1970 | 15.1766 |
| 1969 | 11.7732 |
| 1968 | 9.33464 |
| 1967 | 7.66582 |
| 1966 | 6.84654 |
| 1965 | 7.26756 |
| 1964 | 5.13734 |
| 1963 | 3.82136 |
| 1962 | 3.51782 |
| 1961 | 4.58349 |
| 1960 | 6.12391 |