| 年份 | 苏丹 |
|---|---|
| 2023 | - |
| 2022 | 0.981607 |
| 2021 | 0.961897 |
| 2020 | 0.936672 |
| 2019 | 0.905696 |
| 2018 | 0.869536 |
| 2017 | 0.829172 |
| 2016 | 0.78725 |
| 2015 | 0.746036 |
| 2014 | 0.707698 |
| 2013 | 0.673746 |
| 2012 | 0.644803 |
| 2011 | 0.621478 |
| 2010 | 0.604015 |
| 2009 | 0.592435 |
| 2008 | 0.586787 |
| 2007 | 0.587331 |
| 2006 | 0.594634 |
| 2005 | 0.61005 |
| 2004 | 0.633446 |
| 2003 | 0.662376 |
| 2002 | 0.695653 |
| 2001 | 0.729991 |
| 2000 | 0.760661 |
| 1999 | 0.785834 |
| 1998 | 0.807936 |
| 1997 | 0.82152 |
| 1996 | 0.824987 |
| 1995 | 0.82475 |
| 1994 | 0.817697 |
| 1993 | 0.802615 |
| 1992 | 0.782975 |
| 1991 | 0.759848 |
| 1990 | 0.735283 |
| 1989 | 0.712069 |
| 1988 | 0.711175 |
| 1987 | 0.721552 |
| 1986 | 0.713374 |
| 1985 | 0.698498 |
| 1984 | 0.684321 |
| 1983 | 0.669559 |
| 1982 | 0.656237 |
| 1981 | 0.647452 |
| 1980 | 0.643625 |
| 1979 | 0.643527 |
| 1978 | 0.647577 |
| 1977 | 0.653842 |
| 1976 | 0.659622 |
| 1975 | 0.665675 |
| 1974 | 0.672771 |
| 1973 | 0.677723 |
| 1972 | 0.681624 |
| 1971 | 0.688482 |
| 1970 | 0.697428 |
| 1969 | 0.708065 |
| 1968 | 0.720093 |
| 1967 | 0.733459 |
| 1966 | 0.748342 |
| 1965 | 0.764391 |
| 1964 | 0.78142 |
| 1963 | 0.799934 |
| 1962 | 0.817372 |
| 1961 | 0.831522 |
| 1960 | 0.843441 |