| 年份 | 苏丹 |
|---|---|
| 2023 | - |
| 2022 | 2.94255 |
| 2021 | 2.95342 |
| 2020 | 2.97382 |
| 2019 | 3.00692 |
| 2018 | 3.05066 |
| 2017 | 3.10164 |
| 2016 | 3.15526 |
| 2015 | 3.21325 |
| 2014 | 3.27537 |
| 2013 | 3.3332 |
| 2012 | 3.38109 |
| 2011 | 3.4181 |
| 2010 | 3.43901 |
| 2009 | 3.44189 |
| 2008 | 3.42432 |
| 2007 | 3.3824 |
| 2006 | 3.31559 |
| 2005 | 3.2231 |
| 2004 | 3.10259 |
| 2003 | 2.96454 |
| 2002 | 2.82336 |
| 2001 | 2.67936 |
| 2000 | 2.53446 |
| 1999 | 2.39936 |
| 1998 | 2.27222 |
| 1997 | 2.14622 |
| 1996 | 2.03071 |
| 1995 | 1.93211 |
| 1994 | 1.85334 |
| 1993 | 1.79732 |
| 1992 | 1.78758 |
| 1991 | 1.81704 |
| 1990 | 1.85173 |
| 1989 | 1.88968 |
| 1988 | 1.932 |
| 1987 | 1.97715 |
| 1986 | 2.02561 |
| 1985 | 2.07428 |
| 1984 | 2.11906 |
| 1983 | 2.1323 |
| 1982 | 2.14499 |
| 1981 | 2.20277 |
| 1980 | 2.27867 |
| 1979 | 2.35688 |
| 1978 | 2.43442 |
| 1977 | 2.51152 |
| 1976 | 2.58274 |
| 1975 | 2.64924 |
| 1974 | 2.71549 |
| 1973 | 2.72033 |
| 1972 | 2.66219 |
| 1971 | 2.60267 |
| 1970 | 2.54217 |
| 1969 | 2.48027 |
| 1968 | 2.45655 |
| 1967 | 2.4748 |
| 1966 | 2.49557 |
| 1965 | 2.51812 |
| 1964 | 2.54207 |
| 1963 | 2.5691 |
| 1962 | 2.59757 |
| 1961 | 2.62211 |
| 1960 | 2.6405 |