| 年份 | 加纳 |
|---|---|
| 2023 | - |
| 2022 | 2.90529 |
| 2021 | 3.41949 |
| 2020 | 3.40916 |
| 2019 | 3.15307 |
| 2018 | 3.88613 |
| 2017 | 3.53363 |
| 2016 | 4.39453 |
| 2015 | 4.43405 |
| 2014 | 4.39979 |
| 2013 | 4.57647 |
| 2012 | 7.91914 |
| 2011 | 8.14097 |
| 2010 | 5.5406 |
| 2009 | 5.31744 |
| 2008 | 5.75796 |
| 2007 | 5.51987 |
| 2006 | 5.14794 |
| 2005 | 7.42208 |
| 2004 | 7.53558 |
| 2003 | - |
| 2002 | - |
| 2001 | 5.35444 |
| 2000 | - |
| 1999 | 4.11037 |
| 1998 | - |
| 1997 | - |
| 1996 | - |
| 1995 | - |
| 1994 | - |
| 1993 | - |
| 1992 | - |
| 1991 | - |
| 1990 | - |
| 1989 | - |
| 1988 | 3.18742 |
| 1987 | 3.3067 |
| 1986 | 3.35448 |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | 1.90454 |
| 1981 | 1.80812 |
| 1980 | 2.70777 |
| 1979 | 2.31135 |
| 1978 | - |
| 1977 | 6.09528 |
| 1976 | 5.82883 |
| 1975 | 4.87654 |
| 1974 | 3.80271 |
| 1973 | - |
| 1972 | 4.6214 |
| 1971 | 4.22444 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |