| 年份 | 贝宁 |
|---|---|
| 2023 | - |
| 2022 | 83.4714 |
| 2021 | 84.0075 |
| 2020 | 84.507 |
| 2019 | 84.9368 |
| 2018 | 85.3147 |
| 2017 | 85.6087 |
| 2016 | 85.8317 |
| 2015 | 86.052 |
| 2014 | 86.3993 |
| 2013 | 86.8221 |
| 2012 | 87.221 |
| 2011 | 87.6751 |
| 2010 | 88.2084 |
| 2009 | 88.9149 |
| 2008 | 89.5916 |
| 2007 | 90.051 |
| 2006 | 90.3389 |
| 2005 | 90.8487 |
| 2004 | 91.5308 |
| 2003 | 92.0602 |
| 2002 | 92.6748 |
| 2001 | 93.3457 |
| 2000 | 94.0253 |
| 1999 | 94.676 |
| 1998 | 95.274 |
| 1997 | 95.8018 |
| 1996 | 96.0925 |
| 1995 | 95.7577 |
| 1994 | 94.336 |
| 1993 | 95.0937 |
| 1992 | 97.1107 |
| 1991 | 97.2368 |
| 1990 | 97.3236 |
| 1989 | 97.3956 |
| 1988 | 97.412 |
| 1987 | 97.3681 |
| 1986 | 97.3093 |
| 1985 | 97.2183 |
| 1984 | 97.0944 |
| 1983 | 96.9547 |
| 1982 | 96.7852 |
| 1981 | 96.585 |
| 1980 | 96.4001 |
| 1979 | 96.2577 |
| 1978 | 96.1535 |
| 1977 | 96.014 |
| 1976 | 95.783 |
| 1975 | 95.419 |
| 1974 | 94.9058 |
| 1973 | 94.2772 |
| 1972 | 93.5326 |
| 1971 | 92.6862 |
| 1970 | 91.7702 |
| 1969 | 90.7941 |
| 1968 | 89.7588 |
| 1967 | 88.6792 |
| 1966 | 87.552 |
| 1965 | 86.3982 |
| 1964 | 84.7056 |
| 1963 | 82.8468 |
| 1962 | 81.5543 |
| 1961 | 80.5887 |
| 1960 | 79.8848 |