| 年份 | 贝宁  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 4.56386 | 
| 2021 | 4.514 | 
| 2020 | 4.47092 | 
| 2019 | 4.44208 | 
| 2018 | 4.42927 | 
| 2017 | 4.42541 | 
| 2016 | 4.42332 | 
| 2015 | 4.42115 | 
| 2014 | 4.41815 | 
| 2013 | 4.41413 | 
| 2012 | 4.40691 | 
| 2011 | 4.39813 | 
| 2010 | 4.39078 | 
| 2009 | 4.38344 | 
| 2008 | 4.37335 | 
| 2007 | 4.35961 | 
| 2006 | 4.3414 | 
| 2005 | 4.30863 | 
| 2004 | 4.26354 | 
| 2003 | 4.21609 | 
| 2002 | 4.16468 | 
| 2001 | 4.11026 | 
| 2000 | 4.05974 | 
| 1999 | 4.01689 | 
| 1998 | 3.9793 | 
| 1997 | 3.94787 | 
| 1996 | 3.92517 | 
| 1995 | 3.91616 | 
| 1994 | 3.88961 | 
| 1993 | 3.84128 | 
| 1992 | 3.84378 | 
| 1991 | 3.91108 | 
| 1990 | 4.00238 | 
| 1989 | 4.14973 | 
| 1988 | 4.30271 | 
| 1987 | 4.38534 | 
| 1986 | 4.42377 | 
| 1985 | 4.4322 | 
| 1984 | 4.42121 | 
| 1983 | 4.39679 | 
| 1982 | 4.36754 | 
| 1981 | 4.34237 | 
| 1980 | 4.32305 | 
| 1979 | 4.3084 | 
| 1978 | 4.30281 | 
| 1977 | 4.30751 | 
| 1976 | 4.31428 | 
| 1975 | 4.318 | 
| 1974 | 4.32112 | 
| 1973 | 4.32367 | 
| 1972 | 4.32661 | 
| 1971 | 4.33669 | 
| 1970 | 4.35756 | 
| 1969 | 4.3882 | 
| 1968 | 4.42783 | 
| 1967 | 4.47532 | 
| 1966 | 4.52783 | 
| 1965 | 4.5835 | 
| 1964 | 4.6415 | 
| 1963 | 4.70219 | 
| 1962 | 4.76307 | 
| 1961 | 4.81971 | 
| 1960 | 4.86867 |