| 年份 | 加纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 39.3 |
| 2020 | 40.6 |
| 2019 | 42.2 |
| 2018 | 43.9 |
| 2017 | 45.7 |
| 2016 | 47.7 |
| 2015 | 49.7 |
| 2014 | 52 |
| 2013 | 54.5 |
| 2012 | 57.2 |
| 2011 | 60.1 |
| 2010 | 63.1 |
| 2009 | 66 |
| 2008 | 68.8 |
| 2007 | 71.3 |
| 2006 | 73.6 |
| 2005 | 75.8 |
| 2004 | 78.3 |
| 2003 | 81.2 |
| 2002 | 84.5 |
| 2001 | 88.2 |
| 2000 | 92.2 |
| 1999 | 95.9 |
| 1998 | 99.4 |
| 1997 | 102.2 |
| 1996 | 104.5 |
| 1995 | 106.3 |
| 1994 | 107.9 |
| 1993 | 109.5 |
| 1992 | 111.9 |
| 1991 | 115.1 |
| 1990 | 119.4 |
| 1989 | 124.4 |
| 1988 | 130.1 |
| 1987 | 135.8 |
| 1986 | 141.4 |
| 1985 | 146.3 |
| 1984 | 150.4 |
| 1983 | 153.5 |
| 1982 | 155.6 |
| 1981 | 157.1 |
| 1980 | 158.7 |
| 1979 | 160.8 |
| 1978 | 163.9 |
| 1977 | 167.8 |
| 1976 | 172.7 |
| 1975 | 177.8 |
| 1974 | 182.4 |
| 1973 | 186.4 |
| 1972 | 189.4 |
| 1971 | 191.5 |
| 1970 | 192.5 |
| 1969 | 192.9 |
| 1968 | 192.9 |
| 1967 | 192.4 |
| 1966 | 192.1 |
| 1965 | 191.9 |
| 1964 | 192.1 |
| 1963 | 192.9 |
| 1962 | 194 |
| 1961 | 195.5 |
| 1960 | 197.7 |