| 年份 | 加纳 |
|---|---|
| 2023 | - |
| 2022 | -0.792677 |
| 2021 | -2.59759 |
| 2020 | -3.52466 |
| 2019 | -1.9256 |
| 2018 | -1.04873 |
| 2017 | -2.79462 |
| 2016 | -5.49052 |
| 2015 | -8.85786 |
| 2014 | -7.37276 |
| 2013 | -9.87776 |
| 2012 | -12.4496 |
| 2011 | -12.4222 |
| 2010 | -16.4244 |
| 2009 | -13.011 |
| 2008 | -19.4553 |
| 2007 | -16.3041 |
| 2006 | -15.2067 |
| 2005 | -25.2731 |
| 2004 | -21.0637 |
| 2003 | -15.9291 |
| 2002 | -12.2567 |
| 2001 | -19.5798 |
| 2000 | -18.4439 |
| 1999 | -17.5484 |
| 1998 | -12.8568 |
| 1997 | -20.5813 |
| 1996 | -7.98058 |
| 1995 | -8.4302 |
| 1994 | -11.5039 |
| 1993 | -16.1613 |
| 1992 | -11.5417 |
| 1991 | -8.56126 |
| 1990 | -8.9724 |
| 1989 | -7.60062 |
| 1988 | -5.87873 |
| 1987 | -6.52292 |
| 1986 | -3.55949 |
| 1985 | -2.93487 |
| 1984 | -2.72656 |
| 1983 | -0.433063 |
| 1982 | 0.356271 |
| 1981 | -0.56729 |
| 1980 | -0.688416 |
| 1979 | 0.0708667 |
| 1978 | -1.32946 |
| 1977 | -1.04811 |
| 1976 | -0.337113 |
| 1975 | 0.927503 |
| 1974 | -3.47639 |
| 1973 | 5.0557 |
| 1972 | 5.50622 |
| 1971 | -4.48 |
| 1970 | -1.37229 |
| 1969 | -0.5997 |
| 1968 | -0.470588 |
| 1967 | -2.5266 |
| 1966 | -5.00659 |
| 1965 | -9.61801 |
| 1964 | -3.9644 |
| 1963 | -6.27273 |
| 1962 | -4.25532 |
| 1961 | -10.3226 |
| 1960 | -7.24971 |