| 年份 | 阿曼 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 8.7 |
| 2020 | 8.9 |
| 2019 | 9.1 |
| 2018 | 9.3 |
| 2017 | 9.4 |
| 2016 | 9.5 |
| 2015 | 9.6 |
| 2014 | 9.7 |
| 2013 | 9.8 |
| 2012 | 9.9 |
| 2011 | 10 |
| 2010 | 10.1 |
| 2009 | 10.2 |
| 2008 | 10.3 |
| 2007 | 10.5 |
| 2006 | 10.7 |
| 2005 | 11 |
| 2004 | 11.3 |
| 2003 | 11.8 |
| 2002 | 12.4 |
| 2001 | 13.2 |
| 2000 | 14.1 |
| 1999 | 15.1 |
| 1998 | 16.2 |
| 1997 | 17.4 |
| 1996 | 18.9 |
| 1995 | 20.4 |
| 1994 | 22.3 |
| 1993 | 24.3 |
| 1992 | 26.6 |
| 1991 | 29 |
| 1990 | 31.7 |
| 1989 | 34.6 |
| 1988 | 37.8 |
| 1987 | 41.4 |
| 1986 | 45.4 |
| 1985 | 49.9 |
| 1984 | 54.8 |
| 1983 | 60.2 |
| 1982 | 66.1 |
| 1981 | 72.3 |
| 1980 | 78.9 |
| 1979 | 85.7 |
| 1978 | 92.8 |
| 1977 | 100 |
| 1976 | 107.3 |
| 1975 | 114.7 |
| 1974 | 121.9 |
| 1973 | 129.5 |
| 1972 | 137.1 |
| 1971 | 144.8 |
| 1970 | 152.9 |
| 1969 | 161.4 |
| 1968 | 170.2 |
| 1967 | 179.3 |
| 1966 | 188.3 |
| 1965 | 197.7 |
| 1964 | 207.2 |
| 1963 | 217 |
| 1962 | - |
| 1961 | - |
| 1960 | - |