| 年份 | 贝宁 |
|---|---|
| 2023 | - |
| 2022 | 6.25324 |
| 2021 | 7.15545 |
| 2020 | 3.84879 |
| 2019 | 6.86569 |
| 2018 | 6.69725 |
| 2017 | 5.67156 |
| 2016 | 3.33967 |
| 2015 | 1.77815 |
| 2014 | 6.35768 |
| 2013 | 7.19143 |
| 2012 | 4.81122 |
| 2011 | 2.96375 |
| 2010 | 2.11406 |
| 2009 | 2.31929 |
| 2008 | 4.89658 |
| 2007 | 5.98635 |
| 2006 | 3.94374 |
| 2005 | 1.71316 |
| 2004 | 4.42968 |
| 2003 | 3.44358 |
| 2002 | 4.64303 |
| 2001 | 5.33314 |
| 2000 | 5.85771 |
| 1999 | 5.34145 |
| 1998 | 3.96101 |
| 1997 | 5.73469 |
| 1996 | 4.32428 |
| 1995 | 6.0452 |
| 1994 | 2.0204 |
| 1993 | 5.83617 |
| 1992 | 2.95771 |
| 1991 | 4.2258 |
| 1990 | 8.97613 |
| 1989 | -2.85416 |
| 1988 | 3.40525 |
| 1987 | -1.5 |
| 1986 | 2.17114 |
| 1985 | 7.53032 |
| 1984 | 7.92984 |
| 1983 | -4.34782 |
| 1982 | 2.23507 |
| 1981 | 9.95423 |
| 1980 | 6.78176 |
| 1979 | 6.53575 |
| 1978 | 1.25508 |
| 1977 | 4.98366 |
| 1976 | 0.884356 |
| 1975 | -4.89535 |
| 1974 | 3.33931 |
| 1973 | 3.70617 |
| 1972 | 6.42637 |
| 1971 | -1.49684 |
| 1970 | 2.09776 |
| 1969 | 2.8775 |
| 1968 | 3.84234 |
| 1967 | 1.0784 |
| 1966 | 3.57586 |
| 1965 | 5.29386 |
| 1964 | 6.65076 |
| 1963 | 4.73003 |
| 1962 | -3.42641 |
| 1961 | 3.14128 |
| 1960 | - |