| 年份 | 贝宁 |
|---|---|
| 2023 | - |
| 2022 | 50.466 |
| 2021 | 51.028 |
| 2020 | 51.585 |
| 2019 | 52.139 |
| 2018 | 52.688 |
| 2017 | 53.232 |
| 2016 | 53.771 |
| 2015 | 54.305 |
| 2014 | 54.834 |
| 2013 | 55.358 |
| 2012 | 55.875 |
| 2011 | 56.392 |
| 2010 | 56.907 |
| 2009 | 57.42 |
| 2008 | 57.931 |
| 2007 | 58.442 |
| 2006 | 58.951 |
| 2005 | 59.457 |
| 2004 | 59.961 |
| 2003 | 60.464 |
| 2002 | 60.964 |
| 2001 | 61.35 |
| 2000 | 61.667 |
| 1999 | 61.985 |
| 1998 | 62.301 |
| 1997 | 62.615 |
| 1996 | 62.929 |
| 1995 | 63.242 |
| 1994 | 63.553 |
| 1993 | 63.864 |
| 1992 | 64.173 |
| 1991 | 64.753 |
| 1990 | 65.515 |
| 1989 | 66.27 |
| 1988 | 67.015 |
| 1987 | 67.754 |
| 1986 | 68.483 |
| 1985 | 69.204 |
| 1984 | 69.914 |
| 1983 | 70.616 |
| 1982 | 71.308 |
| 1981 | 71.99 |
| 1980 | 72.661 |
| 1979 | 73.324 |
| 1978 | 74.448 |
| 1977 | 75.707 |
| 1976 | 76.921 |
| 1975 | 78.096 |
| 1974 | 79.225 |
| 1973 | 80.311 |
| 1972 | 81.352 |
| 1971 | 82.353 |
| 1970 | 83.309 |
| 1969 | 84.224 |
| 1968 | 85.097 |
| 1967 | 85.931 |
| 1966 | 86.725 |
| 1965 | 87.481 |
| 1964 | 88.199 |
| 1963 | 88.882 |
| 1962 | 89.53 |
| 1961 | 90.144 |
| 1960 | 90.725 |