| 年份 | 苏丹 |
|---|---|
| 2023 | - |
| 2022 | 12.142 |
| 2021 | 12.1257 |
| 2020 | 12.0267 |
| 2019 | 11.8976 |
| 2018 | 11.8145 |
| 2017 | 11.8155 |
| 2016 | 11.8975 |
| 2015 | 12.0397 |
| 2014 | 12.2089 |
| 2013 | 12.3175 |
| 2012 | 12.3446 |
| 2011 | 12.3376 |
| 2010 | 12.331 |
| 2009 | 12.387 |
| 2008 | 12.5115 |
| 2007 | 12.6704 |
| 2006 | 12.8418 |
| 2005 | 13.0096 |
| 2004 | 13.1781 |
| 2003 | 13.3348 |
| 2002 | 13.4917 |
| 2001 | 13.6893 |
| 2000 | 13.9177 |
| 1999 | 14.1285 |
| 1998 | 14.287 |
| 1997 | 14.4143 |
| 1996 | 14.4866 |
| 1995 | 14.4582 |
| 1994 | 14.3626 |
| 1993 | 14.1622 |
| 1992 | 13.9107 |
| 1991 | 13.708 |
| 1990 | 13.5175 |
| 1989 | 13.3349 |
| 1988 | 13.1225 |
| 1987 | 12.9523 |
| 1986 | 12.9282 |
| 1985 | 12.9634 |
| 1984 | 13.0006 |
| 1983 | 12.9818 |
| 1982 | 12.9316 |
| 1981 | 12.9149 |
| 1980 | 12.8982 |
| 1979 | 12.8823 |
| 1978 | 12.8609 |
| 1977 | 12.8255 |
| 1976 | 12.7677 |
| 1975 | 12.7101 |
| 1974 | 12.6722 |
| 1973 | 12.6322 |
| 1972 | 12.5869 |
| 1971 | 12.5619 |
| 1970 | 12.5614 |
| 1969 | 12.5685 |
| 1968 | 12.5748 |
| 1967 | 12.5803 |
| 1966 | 12.5794 |
| 1965 | 12.5654 |
| 1964 | 12.516 |
| 1963 | 12.45 |
| 1962 | 12.4118 |
| 1961 | 12.3841 |
| 1960 | 12.3495 |