| 年份 | 加纳 |
|---|---|
| 2023 | - |
| 2022 | 19.7662 |
| 2021 | 18.2915 |
| 2020 | 17.4361 |
| 2019 | 15.7435 |
| 2018 | 13.6582 |
| 2017 | 13.5323 |
| 2016 | 12.9942 |
| 2015 | 12.7155 |
| 2014 | 12.0471 |
| 2013 | 10.419 |
| 2012 | 8.7124 |
| 2011 | 8.38684 |
| 2010 | - |
| 2009 | 6.11197 |
| 2008 | 4.68223 |
| 2007 | 3.95901 |
| 2006 | 3.1163 |
| 2005 | 3.58626 |
| 2004 | - |
| 2003 | - |
| 2002 | - |
| 2001 | - |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | - |
| 1996 | - |
| 1995 | - |
| 1994 | 0.62854 |
| 1993 | 0.52265 |
| 1992 | 0.53244 |
| 1991 | 0.45414 |
| 1990 | - |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | 0.52865 |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | 0.32658 |
| 1975 | 0.38632 |
| 1974 | 0.29665 |
| 1973 | 0.23549 |
| 1972 | 0.20656 |
| 1971 | 0.20543 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |