| 年份 | 加纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 11.9042 |
| 2020 | 11.8998 |
| 2019 | 11.7069 |
| 2018 | 11.5144 |
| 2017 | 11.3219 |
| 2016 | 11.1293 |
| 2015 | 10.9368 |
| 2014 | 10.7443 |
| 2013 | 10.5517 |
| 2012 | 10.3592 |
| 2011 | 10.1667 |
| 2010 | 9.97413 |
| 2009 | 9.7816 |
| 2008 | 9.58906 |
| 2007 | 9.39653 |
| 2006 | 9.204 |
| 2005 | 9.01147 |
| 2004 | 8.81894 |
| 2003 | 8.6264 |
| 2002 | 8.43387 |
| 2001 | 8.24134 |
| 2000 | 8.04881 |
| 1999 | 7.85628 |
| 1998 | 7.66375 |
| 1997 | 7.47121 |
| 1996 | 7.47121 |
| 1995 | 7.47121 |
| 1994 | 7.47121 |
| 1993 | 7.03173 |
| 1992 | 6.68014 |
| 1991 | 6.68014 |
| 1990 | 6.7153 |
| 1989 | 6.75046 |
| 1988 | 6.78562 |
| 1987 | 6.82078 |
| 1986 | 6.85594 |
| 1985 | 6.8911 |
| 1984 | 6.92625 |
| 1983 | 6.96141 |
| 1982 | 6.99657 |
| 1981 | 7.03173 |
| 1980 | 7.03173 |
| 1979 | 7.03173 |
| 1978 | 7.03173 |
| 1977 | 7.03173 |
| 1976 | 7.03173 |
| 1975 | 7.03173 |
| 1974 | 7.03173 |
| 1973 | 7.03173 |
| 1972 | 7.03173 |
| 1971 | 7.03173 |
| 1970 | 7.03173 |
| 1969 | 7.03173 |
| 1968 | 7.03173 |
| 1967 | 7.03173 |
| 1966 | 7.03173 |
| 1965 | 7.03173 |
| 1964 | 7.03173 |
| 1963 | 7.03173 |
| 1962 | 7.03173 |
| 1961 | 7.03173 |
| 1960 | - |