| 年份 | 贝宁 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 60.7 |
| 2020 | 62.2 |
| 2019 | 63.8 |
| 2018 | 65.3 |
| 2017 | 66.8 |
| 2016 | 68.1 |
| 2015 | 69.5 |
| 2014 | 70.7 |
| 2013 | 72 |
| 2012 | 73.3 |
| 2011 | 74.5 |
| 2010 | 75.7 |
| 2009 | 76.9 |
| 2008 | 78.1 |
| 2007 | 79.3 |
| 2006 | 80.8 |
| 2005 | 82.3 |
| 2004 | 83.9 |
| 2003 | 85.7 |
| 2002 | 87.6 |
| 2001 | 89.4 |
| 2000 | 91.1 |
| 1999 | 92.7 |
| 1998 | 94.3 |
| 1997 | 96.2 |
| 1996 | 98.1 |
| 1995 | 100 |
| 1994 | 102.2 |
| 1993 | 104.3 |
| 1992 | 106.7 |
| 1991 | 109 |
| 1990 | 111.3 |
| 1989 | 113.6 |
| 1988 | 115.9 |
| 1987 | 118.4 |
| 1986 | 120.9 |
| 1985 | 123.4 |
| 1984 | 125.8 |
| 1983 | 128.3 |
| 1982 | 130.8 |
| 1981 | 133.4 |
| 1980 | 135.9 |
| 1979 | 138.6 |
| 1978 | 141.3 |
| 1977 | 144.2 |
| 1976 | 147.4 |
| 1975 | 150.6 |
| 1974 | 153.8 |
| 1973 | 156.8 |
| 1972 | 159.9 |
| 1971 | 162.8 |
| 1970 | 165.8 |
| 1969 | 168.6 |
| 1968 | 171.7 |
| 1967 | 174.5 |
| 1966 | 177.7 |
| 1965 | 180.9 |
| 1964 | 183.9 |
| 1963 | 187.2 |
| 1962 | 190.4 |
| 1961 | 193.6 |
| 1960 | 196.5 |