| 年份 | 苏丹 |
|---|---|
| 2023 | - |
| 2022 | 6.30126 |
| 2021 | 6.28923 |
| 2020 | 6.23429 |
| 2019 | 6.14428 |
| 2018 | 6.0163 |
| 2017 | 5.84193 |
| 2016 | 5.63524 |
| 2015 | 5.41936 |
| 2014 | 5.20017 |
| 2013 | 5.00634 |
| 2012 | 4.85809 |
| 2011 | 4.74831 |
| 2010 | 4.66645 |
| 2009 | 4.58342 |
| 2008 | 4.4925 |
| 2007 | 4.40318 |
| 2006 | 4.32002 |
| 2005 | 4.25589 |
| 2004 | 4.22682 |
| 2003 | 4.23661 |
| 2002 | 4.27388 |
| 2001 | 4.32758 |
| 2000 | 4.39639 |
| 1999 | 4.48191 |
| 1998 | 4.5893 |
| 1997 | 4.71446 |
| 1996 | 4.85315 |
| 1995 | 4.99946 |
| 1994 | 5.13502 |
| 1993 | 5.25744 |
| 1992 | 5.33945 |
| 1991 | 5.37167 |
| 1990 | 5.38272 |
| 1989 | 5.36903 |
| 1988 | 5.34709 |
| 1987 | 5.32549 |
| 1986 | 5.28607 |
| 1985 | 5.22969 |
| 1984 | 5.17466 |
| 1983 | 5.13612 |
| 1982 | 5.08598 |
| 1981 | 5.00903 |
| 1980 | 4.92666 |
| 1979 | 4.85363 |
| 1978 | 4.79612 |
| 1977 | 4.75343 |
| 1976 | 4.72422 |
| 1975 | 4.7046 |
| 1974 | 4.69161 |
| 1973 | 4.69853 |
| 1972 | 4.72424 |
| 1971 | 4.75622 |
| 1970 | 4.79444 |
| 1969 | 4.83555 |
| 1968 | 4.87546 |
| 1967 | 4.91615 |
| 1966 | 4.96075 |
| 1965 | 5.00646 |
| 1964 | 5.05013 |
| 1963 | 5.09542 |
| 1962 | 5.14146 |
| 1961 | 5.18147 |
| 1960 | 5.21527 |