| 年份 | 巴林 |
|---|---|
| 2023 | - |
| 2022 | 0.379029 |
| 2021 | 0.357454 |
| 2020 | 0.346469 |
| 2019 | 0.342186 |
| 2018 | 0.349037 |
| 2017 | 0.368287 |
| 2016 | 0.390582 |
| 2015 | 0.407034 |
| 2014 | 0.382507 |
| 2013 | 0.320541 |
| 2012 | 0.290036 |
| 2011 | 0.289729 |
| 2010 | 0.286406 |
| 2009 | 0.292701 |
| 2008 | 0.314342 |
| 2007 | 0.339779 |
| 2006 | 0.365339 |
| 2005 | 0.387663 |
| 2004 | 0.399373 |
| 2003 | 0.396548 |
| 2002 | 0.388073 |
| 2001 | 0.381306 |
| 2000 | 0.37598 |
| 1999 | 0.37199 |
| 1998 | 0.366491 |
| 1997 | 0.358251 |
| 1996 | 0.348152 |
| 1995 | 0.336091 |
| 1994 | 0.322547 |
| 1993 | 0.309579 |
| 1992 | 0.299241 |
| 1991 | 0.294216 |
| 1990 | 0.296671 |
| 1989 | 0.302371 |
| 1988 | 0.305798 |
| 1987 | 0.308596 |
| 1986 | 0.311913 |
| 1985 | 0.314538 |
| 1984 | 0.3151 |
| 1983 | 0.313133 |
| 1982 | 0.308827 |
| 1981 | 0.306082 |
| 1980 | 0.314659 |
| 1979 | 0.333159 |
| 1978 | 0.350905 |
| 1977 | 0.364382 |
| 1976 | 0.37622 |
| 1975 | 0.388743 |
| 1974 | 0.403586 |
| 1973 | 0.422093 |
| 1972 | 0.443047 |
| 1971 | 0.459585 |
| 1970 | 0.445139 |
| 1969 | 0.403883 |
| 1968 | 0.36232 |
| 1967 | 0.323854 |
| 1966 | 0.292365 |
| 1965 | 0.269536 |
| 1964 | 0.269386 |
| 1963 | 0.28652 |
| 1962 | 0.301646 |
| 1961 | 0.316061 |
| 1960 | 0.330271 |