| 年份 | 阿曼  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 1.88608 | 
| 2021 | 1.88349 | 
| 2020 | 1.8611 | 
| 2019 | 1.79218 | 
| 2018 | 1.73854 | 
| 2017 | 1.72515 | 
| 2016 | 1.72882 | 
| 2015 | 1.73047 | 
| 2014 | 1.72294 | 
| 2013 | 1.70317 | 
| 2012 | 1.65861 | 
| 2011 | 1.60281 | 
| 2010 | 1.54687 | 
| 2009 | 1.49036 | 
| 2008 | 1.44265 | 
| 2007 | 1.4038 | 
| 2006 | 1.38088 | 
| 2005 | 1.37047 | 
| 2004 | 1.35961 | 
| 2003 | 1.34853 | 
| 2002 | 1.34228 | 
| 2001 | 1.33881 | 
| 2000 | 1.33885 | 
| 1999 | 1.34167 | 
| 1998 | 1.34683 | 
| 1997 | 1.35349 | 
| 1996 | 1.36059 | 
| 1995 | 1.36743 | 
| 1994 | 1.37443 | 
| 1993 | 1.38521 | 
| 1992 | 1.40322 | 
| 1991 | 1.42821 | 
| 1990 | 1.45937 | 
| 1989 | 1.49543 | 
| 1988 | 1.53494 | 
| 1987 | 1.57741 | 
| 1986 | 1.62202 | 
| 1985 | 1.66848 | 
| 1984 | 1.70985 | 
| 1983 | 1.74673 | 
| 1982 | 1.787 | 
| 1981 | 1.83022 | 
| 1980 | 1.87513 | 
| 1979 | 1.9214 | 
| 1978 | 1.96963 | 
| 1977 | 2.01875 | 
| 1976 | 2.06507 | 
| 1975 | 2.10601 | 
| 1974 | 2.14261 | 
| 1973 | 2.16905 | 
| 1972 | 2.18515 | 
| 1971 | 2.19876 | 
| 1970 | 2.21101 | 
| 1969 | 2.22139 | 
| 1968 | 2.22963 | 
| 1967 | 2.23601 | 
| 1966 | 2.23992 | 
| 1965 | 2.24124 | 
| 1964 | 2.2407 | 
| 1963 | 2.23923 | 
| 1962 | 2.2352 | 
| 1961 | 2.22582 | 
| 1960 | 2.20883 |