| 年份 | 贝宁 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 55.2 |
| 2020 | 56.6 |
| 2019 | 58 |
| 2018 | 59.5 |
| 2017 | 60.8 |
| 2016 | 62 |
| 2015 | 63.3 |
| 2014 | 64.6 |
| 2013 | 65.8 |
| 2012 | 67.1 |
| 2011 | 68.4 |
| 2010 | 69.6 |
| 2009 | 70.9 |
| 2008 | 72.3 |
| 2007 | 73.7 |
| 2006 | 75.1 |
| 2005 | 76.6 |
| 2004 | 78.2 |
| 2003 | 79.8 |
| 2002 | 81.5 |
| 2001 | 83.3 |
| 2000 | 85 |
| 1999 | 86.8 |
| 1998 | 88.6 |
| 1997 | 90.3 |
| 1996 | 92.2 |
| 1995 | 94 |
| 1994 | 96 |
| 1993 | 98 |
| 1992 | 100.1 |
| 1991 | 102.2 |
| 1990 | 104.4 |
| 1989 | 106.5 |
| 1988 | 108.6 |
| 1987 | 110.8 |
| 1986 | 112.9 |
| 1985 | 115 |
| 1984 | 117.1 |
| 1983 | 119.2 |
| 1982 | 121.3 |
| 1981 | 123.5 |
| 1980 | 125.8 |
| 1979 | 128.2 |
| 1978 | 130.7 |
| 1977 | 133.5 |
| 1976 | 136.5 |
| 1975 | 139.4 |
| 1974 | 142.5 |
| 1973 | 145.4 |
| 1972 | 148.3 |
| 1971 | 151 |
| 1970 | 153.8 |
| 1969 | 156.6 |
| 1968 | 159.4 |
| 1967 | 162.2 |
| 1966 | 165.2 |
| 1965 | 168.3 |
| 1964 | 171.5 |
| 1963 | 174.7 |
| 1962 | 177.8 |
| 1961 | 180.9 |
| 1960 | 183.9 |