| 年份 | 阿曼 |
|---|---|
| 2023 | - |
| 2022 | 7.38319 |
| 2021 | 7.13514 |
| 2020 | 6.89147 |
| 2019 | 6.63919 |
| 2018 | 6.3264 |
| 2017 | 5.99337 |
| 2016 | 5.68597 |
| 2015 | 5.38787 |
| 2014 | 5.11322 |
| 2013 | 4.9107 |
| 2012 | 4.77896 |
| 2011 | 4.68842 |
| 2010 | 4.62191 |
| 2009 | 4.54126 |
| 2008 | 4.45338 |
| 2007 | 4.38967 |
| 2006 | 4.34032 |
| 2005 | 4.29452 |
| 2004 | 4.23771 |
| 2003 | 4.16306 |
| 2002 | 4.0888 |
| 2001 | 4.03185 |
| 2000 | 3.98986 |
| 1999 | 3.9617 |
| 1998 | 3.94311 |
| 1997 | 3.9297 |
| 1996 | 3.92398 |
| 1995 | 3.92831 |
| 1994 | 3.9404 |
| 1993 | 3.9146 |
| 1992 | 3.85133 |
| 1991 | 3.80526 |
| 1990 | 3.78698 |
| 1989 | 3.81132 |
| 1988 | 3.87893 |
| 1987 | 3.94252 |
| 1986 | 3.98134 |
| 1985 | 4.0174 |
| 1984 | 4.02529 |
| 1983 | 4.00833 |
| 1982 | 4.00461 |
| 1981 | 4.00965 |
| 1980 | 4.01779 |
| 1979 | 4.02618 |
| 1978 | 4.03367 |
| 1977 | 4.04123 |
| 1976 | 4.05322 |
| 1975 | 4.07238 |
| 1974 | 4.09364 |
| 1973 | 4.12074 |
| 1972 | 4.15562 |
| 1971 | 4.19204 |
| 1970 | 4.23126 |
| 1969 | 4.27254 |
| 1968 | 4.3143 |
| 1967 | 4.35578 |
| 1966 | 4.39685 |
| 1965 | 4.43648 |
| 1964 | 4.47467 |
| 1963 | 4.51068 |
| 1962 | 4.54378 |
| 1961 | 4.57532 |
| 1960 | 4.60488 |