| 年份 | 苏丹 |
|---|---|
| 2023 | - |
| 2022 | 1.57116 |
| 2021 | 2.24987 |
| 2020 | 5.12531 |
| 2019 | 8.45298 |
| 2018 | 7.6502 |
| 2017 | 6.11214 |
| 2016 | 5.00449 |
| 2015 | 6.42291 |
| 2014 | 7.60891 |
| 2013 | 9.50689 |
| 2012 | 6.85645 |
| 2011 | 12.4787 |
| 2010 | 17.4756 |
| 2009 | 14.5542 |
| 2008 | 20.2654 |
| 2007 | 16.9005 |
| 2006 | 15.0949 |
| 2005 | 14.4588 |
| 2004 | 14.3004 |
| 2003 | 12.2525 |
| 2002 | 11.4096 |
| 2001 | 9.56052 |
| 2000 | 15.9846 |
| 1999 | 7.77941 |
| 1998 | 6.70211 |
| 1997 | 5.34365 |
| 1996 | 6.16027 |
| 1995 | 4.96944 |
| 1994 | 4.69044 |
| 1993 | 4.23007 |
| 1992 | 5.2457 |
| 1991 | 3.33616 |
| 1990 | 4.02284 |
| 1989 | 5.34585 |
| 1988 | 3.78808 |
| 1987 | 5.51268 |
| 1986 | 4.75615 |
| 1985 | 5.75096 |
| 1984 | 8.46715 |
| 1983 | 10.5615 |
| 1982 | 9.98076 |
| 1981 | 9.65074 |
| 1980 | 10.5007 |
| 1979 | 9.95599 |
| 1978 | 7.91995 |
| 1977 | 9.375 |
| 1976 | 11.2236 |
| 1975 | 12.0936 |
| 1974 | 12.7095 |
| 1973 | 14.8483 |
| 1972 | 16.019 |
| 1971 | 15.6376 |
| 1970 | 16.3408 |
| 1969 | 15.7003 |
| 1968 | 15.1147 |
| 1967 | 15.1152 |
| 1966 | 14.3161 |
| 1965 | 14.2318 |
| 1964 | 15.5358 |
| 1963 | 16.7056 |
| 1962 | 14.6162 |
| 1961 | 13.3161 |
| 1960 | 14.5589 |