| 年份 | 阿曼 |
|---|---|
| 2023 | - |
| 2022 | 3.92886 |
| 2021 | 3.96226 |
| 2020 | 3.84961 |
| 2019 | 3.59437 |
| 2018 | 3.4353 |
| 2017 | 3.36717 |
| 2016 | 3.36533 |
| 2015 | 3.3686 |
| 2014 | 3.32613 |
| 2013 | 3.29314 |
| 2012 | 3.32244 |
| 2011 | 3.41332 |
| 2010 | 3.58484 |
| 2009 | 3.73457 |
| 2008 | 3.77999 |
| 2007 | 3.80896 |
| 2006 | 3.81684 |
| 2005 | 3.80445 |
| 2004 | 3.78106 |
| 2003 | 3.81647 |
| 2002 | 3.91308 |
| 2001 | 3.99591 |
| 2000 | 4.05842 |
| 1999 | 4.10521 |
| 1998 | 4.13894 |
| 1997 | 4.16219 |
| 1996 | 4.17159 |
| 1995 | 4.16429 |
| 1994 | 4.14194 |
| 1993 | 4.18229 |
| 1992 | 4.3113 |
| 1991 | 4.4655 |
| 1990 | 4.63711 |
| 1989 | 4.82502 |
| 1988 | 5.02849 |
| 1987 | 5.24558 |
| 1986 | 5.4751 |
| 1985 | 5.71553 |
| 1984 | 5.88079 |
| 1983 | 5.96752 |
| 1982 | 6.06989 |
| 1981 | 6.18327 |
| 1980 | 6.30129 |
| 1979 | 6.42457 |
| 1978 | 6.55639 |
| 1977 | 6.69061 |
| 1976 | 6.8167 |
| 1975 | 6.92442 |
| 1974 | 7.01357 |
| 1973 | 7.04535 |
| 1972 | 7.01834 |
| 1971 | 6.98183 |
| 1970 | 6.93603 |
| 1969 | 6.88113 |
| 1968 | 6.81871 |
| 1967 | 6.74943 |
| 1966 | 6.67432 |
| 1965 | 6.59125 |
| 1964 | 6.49237 |
| 1963 | 6.38295 |
| 1962 | 6.28855 |
| 1961 | 6.21523 |
| 1960 | 6.15185 |