| 年份 | 加纳 |
|---|---|
| 2023 | - |
| 2022 | 10.321 |
| 2021 | 10.3107 |
| 2020 | 10.2766 |
| 2019 | 10.2312 |
| 2018 | 10.1763 |
| 2017 | 10.0956 |
| 2016 | 10.0091 |
| 2015 | 9.95119 |
| 2014 | 9.94967 |
| 2013 | 10.024 |
| 2012 | 10.1679 |
| 2011 | 10.3596 |
| 2010 | 10.5697 |
| 2009 | 10.7768 |
| 2008 | 10.9721 |
| 2007 | 11.1549 |
| 2006 | 11.3305 |
| 2005 | 11.4955 |
| 2004 | 11.6483 |
| 2003 | 11.8313 |
| 2002 | 12.0136 |
| 2001 | 12.125 |
| 2000 | 12.2042 |
| 1999 | 12.2657 |
| 1998 | 12.2316 |
| 1997 | 12.126 |
| 1996 | 11.9767 |
| 1995 | 11.7604 |
| 1994 | 11.5196 |
| 1993 | 11.2594 |
| 1992 | 10.9729 |
| 1991 | 10.7066 |
| 1990 | 10.4871 |
| 1989 | 10.2771 |
| 1988 | 10.0857 |
| 1987 | 9.94419 |
| 1986 | 9.893 |
| 1985 | 9.91499 |
| 1984 | 9.99209 |
| 1983 | 10.2456 |
| 1982 | 10.595 |
| 1981 | 10.8435 |
| 1980 | 11.0318 |
| 1979 | 11.2078 |
| 1978 | 11.3263 |
| 1977 | 11.3543 |
| 1976 | 11.2035 |
| 1975 | 10.9238 |
| 1974 | 10.6587 |
| 1973 | 10.3912 |
| 1972 | 10.1107 |
| 1971 | 9.78721 |
| 1970 | 9.49644 |
| 1969 | 9.35245 |
| 1968 | 9.27328 |
| 1967 | 9.1602 |
| 1966 | 9.04093 |
| 1965 | 8.96087 |
| 1964 | 8.83546 |
| 1963 | 8.67694 |
| 1962 | 8.62052 |
| 1961 | 8.635 |
| 1960 | 8.65748 |