| 年份 | 苏丹 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.459836 |
| 2020 | 0.472426 |
| 2019 | 0.485631 |
| 2018 | 0.499888 |
| 2017 | 0.508604 |
| 2016 | 0.517686 |
| 2015 | 0.526053 |
| 2014 | 0.535714 |
| 2013 | 0.551252 |
| 2012 | 0.564758 |
| 2011 | 0.577511 |
| 2010 | 0.589145 |
| 2009 | 0.603943 |
| 2008 | 0.602553 |
| 2007 | 0.617066 |
| 2006 | 0.618139 |
| 2005 | 0.63472 |
| 2004 | 0.624975 |
| 2003 | 0.640392 |
| 2002 | 0.599159 |
| 2001 | 0.607706 |
| 2000 | 0.617253 |
| 1999 | 0.638991 |
| 1998 | 0.659231 |
| 1997 | 0.678815 |
| 1996 | 0.698677 |
| 1995 | 0.693713 |
| 1994 | 0.660687 |
| 1993 | 0.65956 |
| 1992 | 0.592285 |
| 1991 | 0.598964 |
| 1990 | 0.606897 |
| 1989 | 0.615386 |
| 1988 | 0.622867 |
| 1987 | 0.627764 |
| 1986 | 0.636079 |
| 1985 | 0.645585 |
| 1984 | 0.654811 |
| 1983 | 0.667236 |
| 1982 | 0.686759 |
| 1981 | 0.711892 |
| 1980 | 0.741292 |
| 1979 | 0.772865 |
| 1978 | 0.806622 |
| 1977 | 0.83915 |
| 1976 | 0.86805 |
| 1975 | 0.897571 |
| 1974 | 0.92773 |
| 1973 | 0.958973 |
| 1972 | 0.983723 |
| 1971 | 1.00806 |
| 1970 | 1.03183 |
| 1969 | 1.05479 |
| 1968 | 1.07784 |
| 1967 | 1.10169 |
| 1966 | 1.12537 |
| 1965 | 1.15024 |
| 1964 | 1.17703 |
| 1963 | 1.20405 |
| 1962 | 1.23002 |
| 1961 | 1.25619 |
| 1960 | - |