| 年份 | 苏丹 |
|---|---|
| 2023 | - |
| 2022 | 0.510502 |
| 2021 | 0.487747 |
| 2020 | 0.464744 |
| 2019 | 0.441008 |
| 2018 | 0.418464 |
| 2017 | 0.399344 |
| 2016 | 0.383754 |
| 2015 | 0.371508 |
| 2014 | 0.362571 |
| 2013 | 0.357324 |
| 2012 | 0.355945 |
| 2011 | 0.359113 |
| 2010 | 0.367107 |
| 2009 | 0.379034 |
| 2008 | 0.394458 |
| 2007 | 0.413063 |
| 2006 | 0.432333 |
| 2005 | 0.450358 |
| 2004 | 0.465806 |
| 2003 | 0.4754 |
| 2002 | 0.477212 |
| 2001 | 0.474099 |
| 2000 | 0.468788 |
| 1999 | 0.46136 |
| 1998 | 0.451989 |
| 1997 | 0.439983 |
| 1996 | 0.426774 |
| 1995 | 0.413916 |
| 1994 | 0.39966 |
| 1993 | 0.395108 |
| 1992 | 0.397559 |
| 1991 | 0.391746 |
| 1990 | 0.381895 |
| 1989 | 0.371454 |
| 1988 | 0.367202 |
| 1987 | 0.365821 |
| 1986 | 0.358142 |
| 1985 | 0.350846 |
| 1984 | 0.348057 |
| 1983 | 0.348386 |
| 1982 | 0.349887 |
| 1981 | 0.351971 |
| 1980 | 0.355523 |
| 1979 | 0.359522 |
| 1978 | 0.363979 |
| 1977 | 0.369065 |
| 1976 | 0.374362 |
| 1975 | 0.379997 |
| 1974 | 0.386421 |
| 1973 | 0.391718 |
| 1972 | 0.39655 |
| 1971 | 0.403347 |
| 1970 | 0.411573 |
| 1969 | 0.420946 |
| 1968 | 0.4311 |
| 1967 | 0.441882 |
| 1966 | 0.452888 |
| 1965 | 0.463051 |
| 1964 | 0.471622 |
| 1963 | 0.478785 |
| 1962 | 0.482882 |
| 1961 | 0.484094 |
| 1960 | 0.485274 |