| 年份 | 阿曼 |
|---|---|
| 2023 | - |
| 2022 | 6.88174 |
| 2021 | 7.11766 |
| 2020 | 7.53898 |
| 2019 | 8.12926 |
| 2018 | 8.60808 |
| 2017 | 8.94586 |
| 2016 | 9.29143 |
| 2015 | 9.78316 |
| 2014 | 10.4807 |
| 2013 | 11.2701 |
| 2012 | 11.9062 |
| 2011 | 12.1461 |
| 2010 | 11.9463 |
| 2009 | 11.8059 |
| 2008 | 11.9068 |
| 2007 | 11.9249 |
| 2006 | 11.8635 |
| 2005 | 11.7355 |
| 2004 | 11.5606 |
| 2003 | 11.3704 |
| 2002 | 11.1407 |
| 2001 | 10.8257 |
| 2000 | 10.4449 |
| 1999 | 10.0299 |
| 1998 | 9.63683 |
| 1997 | 9.30288 |
| 1996 | 9.02468 |
| 1995 | 8.79914 |
| 1994 | 8.61857 |
| 1993 | 8.43232 |
| 1992 | 8.23716 |
| 1991 | 8.08355 |
| 1990 | 7.97703 |
| 1989 | 7.9183 |
| 1988 | 7.90607 |
| 1987 | 7.93746 |
| 1986 | 8.00842 |
| 1985 | 8.114 |
| 1984 | 8.20488 |
| 1983 | 8.24944 |
| 1982 | 8.26667 |
| 1981 | 8.2605 |
| 1980 | 8.23641 |
| 1979 | 8.19604 |
| 1978 | 8.13818 |
| 1977 | 8.06456 |
| 1976 | 7.98073 |
| 1975 | 7.89394 |
| 1974 | 7.73875 |
| 1973 | 7.59155 |
| 1972 | 7.62919 |
| 1971 | 7.80552 |
| 1970 | 8.03119 |
| 1969 | 8.33171 |
| 1968 | 8.67033 |
| 1967 | 8.86526 |
| 1966 | 8.90072 |
| 1965 | 8.88914 |
| 1964 | 8.8711 |
| 1963 | 8.8676 |
| 1962 | 8.88197 |
| 1961 | 8.90253 |
| 1960 | 8.91704 |