| 年份 | 贝宁 |
|---|---|
| 2023 | - |
| 2022 | 12.1686 |
| 2021 | 12.2019 |
| 2020 | 12.2515 |
| 2019 | 12.3039 |
| 2018 | 12.357 |
| 2017 | 12.3876 |
| 2016 | 12.3845 |
| 2015 | 12.376 |
| 2014 | 12.3811 |
| 2013 | 12.3938 |
| 2012 | 12.4263 |
| 2011 | 12.4864 |
| 2010 | 12.5669 |
| 2009 | 12.6875 |
| 2008 | 12.7904 |
| 2007 | 12.8365 |
| 2006 | 12.8641 |
| 2005 | 12.8829 |
| 2004 | 12.8437 |
| 2003 | 12.799 |
| 2002 | 12.8113 |
| 2001 | 12.8138 |
| 2000 | 12.8076 |
| 1999 | 12.8067 |
| 1998 | 12.8006 |
| 1997 | 12.7849 |
| 1996 | 12.7588 |
| 1995 | 12.6897 |
| 1994 | 12.5528 |
| 1993 | 12.5611 |
| 1992 | 12.6187 |
| 1991 | 12.5293 |
| 1990 | 12.451 |
| 1989 | 12.4017 |
| 1988 | 12.3892 |
| 1987 | 12.3967 |
| 1986 | 12.4065 |
| 1985 | 12.4162 |
| 1984 | 12.4255 |
| 1983 | 12.4355 |
| 1982 | 12.4435 |
| 1981 | 12.4545 |
| 1980 | 12.4708 |
| 1979 | 12.48 |
| 1978 | 12.471 |
| 1977 | 12.4432 |
| 1976 | 12.3936 |
| 1975 | 12.307 |
| 1974 | 12.1884 |
| 1973 | 12.0553 |
| 1972 | 11.9151 |
| 1971 | 11.7704 |
| 1970 | 11.6375 |
| 1969 | 11.5246 |
| 1968 | 11.4223 |
| 1967 | 11.3317 |
| 1966 | 11.2563 |
| 1965 | 11.2012 |
| 1964 | 10.9295 |
| 1963 | 10.5352 |
| 1962 | 10.3052 |
| 1961 | 10.1641 |
| 1960 | 10.0701 |