| 年份 | 加纳 |
|---|---|
| 2023 | - |
| 2022 | 34.8977 |
| 2021 | 30.0551 |
| 2020 | 31.5254 |
| 2019 | 37.4496 |
| 2018 | 33.4549 |
| 2017 | 33.8769 |
| 2016 | 31.1932 |
| 2015 | 33.8317 |
| 2014 | 28.2319 |
| 2013 | 25.4408 |
| 2012 | 40.3592 |
| 2011 | 36.9366 |
| 2010 | 29.4767 |
| 2009 | 29.2919 |
| 2008 | 25.0295 |
| 2007 | 24.5251 |
| 2006 | 24.6562 |
| 2005 | 36.4492 |
| 2004 | 39.3033 |
| 2003 | 40.679 |
| 2002 | 42.6163 |
| 2001 | 45.233 |
| 2000 | 48.8023 |
| 1999 | 32.0783 |
| 1998 | 33.8714 |
| 1997 | 32.4103 |
| 1996 | 32.1122 |
| 1995 | 24.4964 |
| 1994 | 25.2586 |
| 1993 | 20.2539 |
| 1992 | 17.226 |
| 1991 | 16.9635 |
| 1990 | 16.8779 |
| 1989 | 16.7426 |
| 1988 | 18.1834 |
| 1987 | 19.6626 |
| 1986 | 16.5761 |
| 1985 | 10.6545 |
| 1984 | 8.04403 |
| 1983 | 5.55592 |
| 1982 | 3.33831 |
| 1981 | 4.75587 |
| 1980 | 8.46635 |
| 1979 | 11.2324 |
| 1978 | 8.35795 |
| 1977 | 10.499 |
| 1976 | 15.7064 |
| 1975 | 19.364 |
| 1974 | 18.3262 |
| 1973 | 21.451 |
| 1972 | 20.7105 |
| 1971 | 15.76 |
| 1970 | 21.3369 |
| 1969 | 19.7401 |
| 1968 | 20.3529 |
| 1967 | 17.4202 |
| 1966 | 14.6245 |
| 1965 | 17.1214 |
| 1964 | 19.9029 |
| 1963 | 21.1818 |
| 1962 | 24.2148 |
| 1961 | 26.129 |
| 1960 | 28.1933 |