| 年份 | 阿曼 |
|---|---|
| 2023 | - |
| 2022 | 9.43737 |
| 2021 | 9.07884 |
| 2020 | 8.82643 |
| 2019 | 8.54091 |
| 2018 | 8.23585 |
| 2017 | 7.98848 |
| 2016 | 7.83495 |
| 2015 | 7.73566 |
| 2014 | 7.66204 |
| 2013 | 7.5228 |
| 2012 | 7.21435 |
| 2011 | 6.84133 |
| 2010 | 6.54382 |
| 2009 | 6.35231 |
| 2008 | 6.26861 |
| 2007 | 6.23674 |
| 2006 | 6.25285 |
| 2005 | 6.31028 |
| 2004 | 6.38383 |
| 2003 | 6.3966 |
| 2002 | 6.36242 |
| 2001 | 6.35771 |
| 2000 | 6.37707 |
| 1999 | 6.41343 |
| 1998 | 6.46072 |
| 1997 | 6.50941 |
| 1996 | 6.554 |
| 1995 | 6.59114 |
| 1994 | 6.61691 |
| 1993 | 6.43128 |
| 1992 | 6.02708 |
| 1991 | 5.6352 |
| 1990 | 5.28393 |
| 1989 | 4.99126 |
| 1988 | 4.76557 |
| 1987 | 4.57726 |
| 1986 | 4.41495 |
| 1985 | 4.30133 |
| 1984 | 4.22467 |
| 1983 | 4.16277 |
| 1982 | 4.11179 |
| 1981 | 4.06927 |
| 1980 | 4.0316 |
| 1979 | 3.99593 |
| 1978 | 3.96028 |
| 1977 | 3.92707 |
| 1976 | 3.90408 |
| 1975 | 3.899 |
| 1974 | 3.90936 |
| 1973 | 3.93666 |
| 1972 | 3.98091 |
| 1971 | 4.032 |
| 1970 | 4.08665 |
| 1969 | 4.1458 |
| 1968 | 4.21028 |
| 1967 | 4.2742 |
| 1966 | 4.333 |
| 1965 | 4.38594 |
| 1964 | 4.43013 |
| 1963 | 4.46507 |
| 1962 | 4.49177 |
| 1961 | 4.51546 |
| 1960 | 4.5415 |