| 年份 | 加纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 13.3475 |
| 2020 | 8.48658 |
| 2019 | 9.76737 |
| 2018 | 9.79041 |
| 2017 | 10.37 |
| 2016 | 8.6498 |
| 2015 | 10.5635 |
| 2014 | 12.2495 |
| 2013 | 10.8892 |
| 2012 | 15.8227 |
| 2011 | 16.0707 |
| 2010 | 10.1146 |
| 2009 | 10.8116 |
| 2008 | 9.1619 |
| 2007 | 8.82815 |
| 2006 | 7.57618 |
| 2005 | 11.7318 |
| 2004 | 12.3974 |
| 2003 | 15.6198 |
| 2002 | 13.4249 |
| 2001 | 12.7461 |
| 2000 | 13.7597 |
| 1999 | 7.82932 |
| 1998 | 12.0487 |
| 1997 | 12.4994 |
| 1996 | 13.7777 |
| 1995 | 12.8447 |
| 1994 | 13.6669 |
| 1993 | 9.60398 |
| 1992 | 7.58567 |
| 1991 | 6.39333 |
| 1990 | 6.86274 |
| 1989 | 5.67444 |
| 1988 | 5.89885 |
| 1987 | 5.73623 |
| 1986 | 4.86765 |
| 1985 | 4.30538 |
| 1984 | 5.69746 |
| 1983 | 7.02767 |
| 1982 | 8.53011 |
| 1981 | 6.99761 |
| 1980 | 8.72004 |
| 1979 | 6.61415 |
| 1978 | 6.3781 |
| 1977 | 7.40909 |
| 1976 | 5.75414 |
| 1975 | 5.517 |
| 1974 | 4.82726 |
| 1973 | 4.95931 |
| 1972 | 3.47731 |
| 1971 | 2.3355 |
| 1970 | 2.86308 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |