| 年份 | 苏丹 |
|---|---|
| 2023 | - |
| 2022 | 6.29737 |
| 2021 | 6.17055 |
| 2020 | 6.01608 |
| 2019 | 5.8242 |
| 2018 | 5.61628 |
| 2017 | 5.42236 |
| 2016 | 5.23819 |
| 2015 | 5.05665 |
| 2014 | 4.89284 |
| 2013 | 4.73763 |
| 2012 | 4.58132 |
| 2011 | 4.44217 |
| 2010 | 4.32869 |
| 2009 | 4.25433 |
| 2008 | 4.22085 |
| 2007 | 4.21948 |
| 2006 | 4.24683 |
| 2005 | 4.30616 |
| 2004 | 4.39147 |
| 2003 | 4.48156 |
| 2002 | 4.57115 |
| 2001 | 4.67121 |
| 2000 | 4.78609 |
| 1999 | 4.91229 |
| 1998 | 5.06836 |
| 1997 | 5.23002 |
| 1996 | 5.36225 |
| 1995 | 5.47074 |
| 1994 | 5.53124 |
| 1993 | 5.57155 |
| 1992 | 5.56962 |
| 1991 | 5.48273 |
| 1990 | 5.36641 |
| 1989 | 5.24384 |
| 1988 | 5.17898 |
| 1987 | 5.13682 |
| 1986 | 5.02213 |
| 1985 | 4.89825 |
| 1984 | 4.80391 |
| 1983 | 4.77355 |
| 1982 | 4.79566 |
| 1981 | 4.82039 |
| 1980 | 4.85457 |
| 1979 | 4.89004 |
| 1978 | 4.92715 |
| 1977 | 4.96539 |
| 1976 | 5.00084 |
| 1975 | 5.03889 |
| 1974 | 5.08744 |
| 1973 | 5.11961 |
| 1972 | 5.13535 |
| 1971 | 5.16232 |
| 1970 | 5.19986 |
| 1969 | 5.24511 |
| 1968 | 5.29419 |
| 1967 | 5.34795 |
| 1966 | 5.40802 |
| 1965 | 5.47375 |
| 1964 | 5.54037 |
| 1963 | 5.61078 |
| 1962 | 5.68039 |
| 1961 | 5.73965 |
| 1960 | 5.79198 |