| 年份 | 加纳 |
|---|---|
| 2023 | - |
| 2022 | 62.0716 |
| 2021 | 62.858 |
| 2020 | 63.6838 |
| 2019 | 64.454 |
| 2018 | 65.1182 |
| 2017 | 65.8314 |
| 2016 | 66.5137 |
| 2015 | 66.9937 |
| 2014 | 67.3135 |
| 2013 | 67.5221 |
| 2012 | 67.6449 |
| 2011 | 67.7577 |
| 2010 | 67.9391 |
| 2009 | 68.2885 |
| 2008 | 68.8512 |
| 2007 | 69.5746 |
| 2006 | 70.387 |
| 2005 | 71.2309 |
| 2004 | 72.1971 |
| 2003 | 73.3414 |
| 2002 | 74.6334 |
| 2001 | 76.0809 |
| 2000 | 77.5387 |
| 1999 | 79.0179 |
| 1998 | 80.8199 |
| 1997 | 82.8605 |
| 1996 | 84.768 |
| 1995 | 86.5337 |
| 1994 | 88.2202 |
| 1993 | 89.7378 |
| 1992 | 91.0546 |
| 1991 | 91.9172 |
| 1990 | 92.3936 |
| 1989 | 92.7567 |
| 1988 | 92.8182 |
| 1987 | 92.4131 |
| 1986 | 91.4765 |
| 1985 | 90.2489 |
| 1984 | 88.9575 |
| 1983 | 88.1308 |
| 1982 | 87.9364 |
| 1981 | 87.9516 |
| 1980 | 88.1472 |
| 1979 | 88.6172 |
| 1978 | 89.4012 |
| 1977 | 90.3978 |
| 1976 | 91.5397 |
| 1975 | 92.6822 |
| 1974 | 93.6754 |
| 1973 | 94.5019 |
| 1972 | 95.1046 |
| 1971 | 95.4541 |
| 1970 | 95.5333 |
| 1969 | 95.3855 |
| 1968 | 95.1076 |
| 1967 | 94.699 |
| 1966 | 94.1244 |
| 1965 | 93.3429 |
| 1964 | 92.4615 |
| 1963 | 91.3986 |
| 1962 | 89.9381 |
| 1961 | 88.2181 |
| 1960 | 86.4215 |