| 年份 | 巴林 |
|---|---|
| 2023 | - |
| 2022 | 15.1796 |
| 2021 | 14.9956 |
| 2020 | 14.3595 |
| 2019 | 13.7206 |
| 2018 | 13.0725 |
| 2017 | 12.3315 |
| 2016 | 11.7478 |
| 2015 | 11.3706 |
| 2014 | 11.2965 |
| 2013 | 11.4467 |
| 2012 | 11.4412 |
| 2011 | 11.4587 |
| 2010 | 11.611 |
| 2009 | 11.4889 |
| 2008 | 11.1546 |
| 2007 | 10.8894 |
| 2006 | 10.679 |
| 2005 | 10.5453 |
| 2004 | 10.5461 |
| 2003 | 10.6046 |
| 2002 | 10.5649 |
| 2001 | 10.5238 |
| 2000 | 10.5802 |
| 1999 | 10.6768 |
| 1998 | 10.7754 |
| 1997 | 10.8577 |
| 1996 | 10.9084 |
| 1995 | 10.9229 |
| 1994 | 10.9046 |
| 1993 | 10.846 |
| 1992 | 10.7397 |
| 1991 | 10.5947 |
| 1990 | 10.2643 |
| 1989 | 9.77922 |
| 1988 | 9.33425 |
| 1987 | 8.92137 |
| 1986 | 8.53348 |
| 1985 | 8.17388 |
| 1984 | 7.85501 |
| 1983 | 7.59401 |
| 1982 | 7.40165 |
| 1981 | 7.22596 |
| 1980 | 6.92601 |
| 1979 | 6.55878 |
| 1978 | 6.27768 |
| 1977 | 6.07941 |
| 1976 | 5.95393 |
| 1975 | 5.88655 |
| 1974 | 5.86727 |
| 1973 | 5.8927 |
| 1972 | 5.96344 |
| 1971 | 6.07844 |
| 1970 | 6.21114 |
| 1969 | 6.31873 |
| 1968 | 6.38499 |
| 1967 | 6.41107 |
| 1966 | 6.40446 |
| 1965 | 6.36429 |
| 1964 | 6.27464 |
| 1963 | 6.18335 |
| 1962 | 6.14468 |
| 1961 | 6.13954 |
| 1960 | 6.1522 |