| 年份 | 阿曼 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.108562 |
| 2020 | 0.107496 |
| 2019 | 0.10517 |
| 2018 | 0.104136 |
| 2017 | 0.102132 |
| 2016 | 0.0933441 |
| 2015 | 0.0996446 |
| 2014 | 0.101131 |
| 2013 | 0.0995153 |
| 2012 | 0.126333 |
| 2011 | 0.126333 |
| 2010 | 0.123748 |
| 2009 | 0.119548 |
| 2008 | 0.119548 |
| 2007 | 0.119548 |
| 2006 | 0.119548 |
| 2005 | 0.119548 |
| 2004 | 0.138934 |
| 2003 | 0.135703 |
| 2002 | 0.136995 |
| 2001 | 0.137641 |
| 2000 | 0.135703 |
| 1999 | 0.129241 |
| 1998 | 0.129241 |
| 1997 | 0.132472 |
| 1996 | 0.138934 |
| 1995 | 0.138934 |
| 1994 | 0.138934 |
| 1993 | 0.138934 |
| 1992 | 0.155089 |
| 1991 | 0.145396 |
| 1990 | 0.145396 |
| 1989 | 0.135703 |
| 1988 | 0.129241 |
| 1987 | 0.119548 |
| 1986 | 0.113086 |
| 1985 | 0.103393 |
| 1984 | 0.103393 |
| 1983 | 0.0904685 |
| 1982 | 0.0904685 |
| 1981 | 0.0904685 |
| 1980 | 0.0904685 |
| 1979 | 0.0904685 |
| 1978 | 0.0904685 |
| 1977 | 0.0840065 |
| 1976 | 0.0807754 |
| 1975 | 0.0775444 |
| 1974 | 0.0743134 |
| 1973 | 0.0710824 |
| 1972 | 0.0678514 |
| 1971 | 0.0646204 |
| 1970 | 0.0646204 |
| 1969 | 0.0581583 |
| 1968 | 0.0581583 |
| 1967 | 0.0581583 |
| 1966 | 0.0516963 |
| 1965 | 0.0516963 |
| 1964 | 0.0516963 |
| 1963 | 0.0484653 |
| 1962 | 0.0484653 |
| 1961 | 0.0484653 |
| 1960 | - |