| 年份 | 苏丹 |
|---|---|
| 2023 | - |
| 2022 | 3.49952 |
| 2021 | 3.42404 |
| 2020 | 3.33798 |
| 2019 | 3.23433 |
| 2018 | 3.11995 |
| 2017 | 3.00731 |
| 2016 | 2.89816 |
| 2015 | 2.79261 |
| 2014 | 2.6961 |
| 2013 | 2.60839 |
| 2012 | 2.52614 |
| 2011 | 2.45585 |
| 2010 | 2.40174 |
| 2009 | 2.36301 |
| 2008 | 2.33958 |
| 2007 | 2.32996 |
| 2006 | 2.33147 |
| 2005 | 2.34619 |
| 2004 | 2.37312 |
| 2003 | 2.40468 |
| 2002 | 2.43765 |
| 2001 | 2.47421 |
| 2000 | 2.51352 |
| 1999 | 2.55428 |
| 1998 | 2.60812 |
| 1997 | 2.66348 |
| 1996 | 2.70435 |
| 1995 | 2.73624 |
| 1994 | 2.74834 |
| 1993 | 2.75618 |
| 1992 | 2.7517 |
| 1991 | 2.71185 |
| 1990 | 2.65956 |
| 1989 | 2.6059 |
| 1988 | 2.58242 |
| 1987 | 2.57066 |
| 1986 | 2.52312 |
| 1985 | 2.46888 |
| 1984 | 2.42727 |
| 1983 | 2.41506 |
| 1982 | 2.42565 |
| 1981 | 2.43496 |
| 1980 | 2.44681 |
| 1979 | 2.45892 |
| 1978 | 2.47171 |
| 1977 | 2.4847 |
| 1976 | 2.4968 |
| 1975 | 2.51033 |
| 1974 | 2.52787 |
| 1973 | 2.54057 |
| 1972 | 2.55026 |
| 1971 | 2.56766 |
| 1970 | 2.59097 |
| 1969 | 2.61811 |
| 1968 | 2.64753 |
| 1967 | 2.68 |
| 1966 | 2.71642 |
| 1965 | 2.75541 |
| 1964 | 2.79566 |
| 1963 | 2.83824 |
| 1962 | 2.8786 |
| 1961 | 2.91231 |
| 1960 | 2.94262 |