| 年份 | 阿曼 |
|---|---|
| 2023 | - |
| 2022 | 6.18064 |
| 2021 | 6.43211 |
| 2020 | 6.6453 |
| 2019 | 7.30381 |
| 2018 | 8.01927 |
| 2017 | 8.61899 |
| 2016 | 8.88973 |
| 2015 | 9.01237 |
| 2014 | 9.6488 |
| 2013 | 11.058 |
| 2012 | 12.7871 |
| 2011 | 13.7514 |
| 2010 | 13.1936 |
| 2009 | 12.5949 |
| 2008 | 12.774 |
| 2007 | 12.6136 |
| 2006 | 12.1477 |
| 2005 | 11.4822 |
| 2004 | 10.7915 |
| 2003 | 10.44 |
| 2002 | 10.3765 |
| 2001 | 10.2457 |
| 2000 | 10.0405 |
| 1999 | 9.78781 |
| 1998 | 9.5518 |
| 1997 | 9.37048 |
| 1996 | 9.23224 |
| 1995 | 9.13986 |
| 1994 | 9.0967 |
| 1993 | 9.11414 |
| 1992 | 9.15944 |
| 1991 | 9.18509 |
| 1990 | 9.18591 |
| 1989 | 9.1583 |
| 1988 | 9.09724 |
| 1987 | 8.99608 |
| 1986 | 8.84613 |
| 1985 | 8.63736 |
| 1984 | 8.5486 |
| 1983 | 8.60601 |
| 1982 | 8.62269 |
| 1981 | 8.60377 |
| 1980 | 8.5571 |
| 1979 | 8.47982 |
| 1978 | 8.36589 |
| 1977 | 8.22182 |
| 1976 | 8.06224 |
| 1975 | 7.90838 |
| 1974 | 7.72417 |
| 1973 | 7.57332 |
| 1972 | 7.60528 |
| 1971 | 7.77772 |
| 1970 | 8.00191 |
| 1969 | 8.30798 |
| 1968 | 8.65829 |
| 1967 | 8.86619 |
| 1966 | 8.91398 |
| 1965 | 8.91376 |
| 1964 | 8.90274 |
| 1963 | 8.90134 |
| 1962 | 8.91387 |
| 1961 | 8.93055 |
| 1960 | 8.93927 |