| 年份 | 阿曼 |
|---|---|
| 2023 | - |
| 2022 | 2.32507 |
| 2021 | 2.32976 |
| 2020 | 2.34736 |
| 2019 | 2.38495 |
| 2018 | 2.40681 |
| 2017 | 2.40316 |
| 2016 | 2.39333 |
| 2015 | 2.34389 |
| 2014 | 2.27623 |
| 2013 | 2.23289 |
| 2012 | 2.17432 |
| 2011 | 2.08107 |
| 2010 | 1.96558 |
| 2009 | 1.90143 |
| 2008 | 1.89924 |
| 2007 | 1.89066 |
| 2006 | 1.86768 |
| 2005 | 1.83121 |
| 2004 | 1.79161 |
| 2003 | 1.77387 |
| 2002 | 1.77593 |
| 2001 | 1.776 |
| 2000 | 1.77234 |
| 1999 | 1.76577 |
| 1998 | 1.76018 |
| 1997 | 1.75938 |
| 1996 | 1.76512 |
| 1995 | 1.77736 |
| 1994 | 1.79449 |
| 1993 | 1.81117 |
| 1992 | 1.82517 |
| 1991 | 1.84019 |
| 1990 | 1.85923 |
| 1989 | 1.8837 |
| 1988 | 1.91437 |
| 1987 | 1.95217 |
| 1986 | 1.99705 |
| 1985 | 2.04977 |
| 1984 | 2.09664 |
| 1983 | 2.13561 |
| 1982 | 2.17963 |
| 1981 | 2.22727 |
| 1980 | 2.27688 |
| 1979 | 2.32783 |
| 1978 | 2.37994 |
| 1977 | 2.43231 |
| 1976 | 2.48446 |
| 1975 | 2.53521 |
| 1974 | 2.58426 |
| 1973 | 2.62766 |
| 1972 | 2.66408 |
| 1971 | 2.69665 |
| 1970 | 2.72416 |
| 1969 | 2.7468 |
| 1968 | 2.76456 |
| 1967 | 2.77797 |
| 1966 | 2.78903 |
| 1965 | 2.79919 |
| 1964 | 2.80738 |
| 1963 | 2.81255 |
| 1962 | 2.81473 |
| 1961 | 2.81305 |
| 1960 | 2.80756 |