| 年份 | 巴林 |
|---|---|
| 2023 | - |
| 2022 | 0.707189 |
| 2021 | 0.705714 |
| 2020 | 0.680024 |
| 2019 | 0.628857 |
| 2018 | 0.595125 |
| 2017 | 0.578275 |
| 2016 | 0.565396 |
| 2015 | 0.543672 |
| 2014 | 0.509561 |
| 2013 | 0.498725 |
| 2012 | 0.497589 |
| 2011 | 0.481814 |
| 2010 | 0.448172 |
| 2009 | 0.415206 |
| 2008 | 0.399338 |
| 2007 | 0.391457 |
| 2006 | 0.393307 |
| 2005 | 0.400583 |
| 2004 | 0.410718 |
| 2003 | 0.418481 |
| 2002 | 0.416337 |
| 2001 | 0.406376 |
| 2000 | 0.395208 |
| 1999 | 0.383363 |
| 1998 | 0.36935 |
| 1997 | 0.356167 |
| 1996 | 0.347787 |
| 1995 | 0.3434 |
| 1994 | 0.340287 |
| 1993 | 0.336661 |
| 1992 | 0.333118 |
| 1991 | 0.332373 |
| 1990 | 0.335574 |
| 1989 | 0.339823 |
| 1988 | 0.342065 |
| 1987 | 0.344009 |
| 1986 | 0.345211 |
| 1985 | 0.347388 |
| 1984 | 0.35459 |
| 1983 | 0.36609 |
| 1982 | 0.377025 |
| 1981 | 0.383052 |
| 1980 | 0.387016 |
| 1979 | 0.391603 |
| 1978 | 0.396789 |
| 1977 | 0.399849 |
| 1976 | 0.400372 |
| 1975 | 0.399115 |
| 1974 | 0.393984 |
| 1973 | 0.383498 |
| 1972 | 0.367936 |
| 1971 | 0.346791 |
| 1970 | 0.31897 |
| 1969 | 0.292462 |
| 1968 | 0.272848 |
| 1967 | 0.262367 |
| 1966 | 0.260837 |
| 1965 | 0.263991 |
| 1964 | 0.275282 |
| 1963 | 0.292903 |
| 1962 | 0.308252 |
| 1961 | 0.321837 |
| 1960 | 0.33488 |