| 年份 | 加纳 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 7.627 |
| 2020 | 7.448 |
| 2019 | 7.143 |
| 2018 | 7.373 |
| 2017 | 7.39 |
| 2016 | 7.46 |
| 2015 | 7.773 |
| 2014 | 7.817 |
| 2013 | 8.092 |
| 2012 | 8.238 |
| 2011 | 8.417 |
| 2010 | 8.626 |
| 2009 | 8.706 |
| 2008 | 8.905 |
| 2007 | 9.026 |
| 2006 | 9.14 |
| 2005 | 9.247 |
| 2004 | 9.476 |
| 2003 | 9.513 |
| 2002 | 9.744 |
| 2001 | 9.974 |
| 2000 | 9.922 |
| 1999 | 9.962 |
| 1998 | 10.142 |
| 1997 | 10.322 |
| 1996 | 10.513 |
| 1995 | 10.676 |
| 1994 | 10.941 |
| 1993 | 10.865 |
| 1992 | 11.02 |
| 1991 | 11.209 |
| 1990 | 11.492 |
| 1989 | 11.818 |
| 1988 | 12.302 |
| 1987 | 12.799 |
| 1986 | 13.294 |
| 1985 | 13.798 |
| 1984 | 14.157 |
| 1983 | 14.396 |
| 1982 | 14.556 |
| 1981 | 14.808 |
| 1980 | 15.111 |
| 1979 | 15.168 |
| 1978 | 15.349 |
| 1977 | 15.583 |
| 1976 | 15.934 |
| 1975 | 16.421 |
| 1974 | 16.892 |
| 1973 | 17.311 |
| 1972 | 17.76 |
| 1971 | 18.263 |
| 1970 | 18.422 |
| 1969 | 18.649 |
| 1968 | 18.661 |
| 1967 | 18.613 |
| 1966 | 18.621 |
| 1965 | 18.628 |
| 1964 | 18.671 |
| 1963 | 18.733 |
| 1962 | 18.747 |
| 1961 | 18.668 |
| 1960 | 18.998 |