| 年份 | 贝宁 |
|---|---|
| 2023 | - |
| 2022 | 77.8488 |
| 2021 | 78.3467 |
| 2020 | 78.8079 |
| 2019 | 79.2216 |
| 2018 | 79.5962 |
| 2017 | 79.8825 |
| 2016 | 80.0938 |
| 2015 | 80.2997 |
| 2014 | 80.5821 |
| 2013 | 80.9177 |
| 2012 | 81.2721 |
| 2011 | 81.7015 |
| 2010 | 82.2219 |
| 2009 | 82.9155 |
| 2008 | 83.5795 |
| 2007 | 84.0287 |
| 2006 | 84.3034 |
| 2005 | 84.7811 |
| 2004 | 85.4148 |
| 2003 | 85.8931 |
| 2002 | 86.4453 |
| 2001 | 87.0483 |
| 2000 | 87.6578 |
| 1999 | 88.2348 |
| 1998 | 88.7551 |
| 1997 | 89.2021 |
| 1996 | 89.4145 |
| 1995 | 89.019 |
| 1994 | 87.5707 |
| 1993 | 88.1854 |
| 1992 | 89.997 |
| 1991 | 90.0117 |
| 1990 | 89.9855 |
| 1989 | 89.9427 |
| 1988 | 89.8433 |
| 1987 | 89.6823 |
| 1986 | 89.5029 |
| 1985 | 89.2888 |
| 1984 | 89.0391 |
| 1983 | 88.773 |
| 1982 | 88.4772 |
| 1981 | 88.1488 |
| 1980 | 87.8354 |
| 1979 | 87.5666 |
| 1978 | 87.3405 |
| 1977 | 87.082 |
| 1976 | 86.7336 |
| 1975 | 86.2564 |
| 1974 | 85.6343 |
| 1973 | 84.9032 |
| 1972 | 84.0633 |
| 1971 | 83.1247 |
| 1970 | 82.1152 |
| 1969 | 81.0456 |
| 1968 | 79.9182 |
| 1967 | 78.7441 |
| 1966 | 77.5192 |
| 1965 | 76.2634 |
| 1964 | 74.4913 |
| 1963 | 72.5557 |
| 1962 | 71.1465 |
| 1961 | 70.0327 |
| 1960 | 69.1524 |