| 年份 | 科威特 |
|---|---|
| 2023 | - |
| 2022 | 1.14766 |
| 2021 | 1.02458 |
| 2020 | 0.905567 |
| 2019 | 0.798501 |
| 2018 | 0.725466 |
| 2017 | 0.682736 |
| 2016 | 0.644177 |
| 2015 | 0.636789 |
| 2014 | 0.625283 |
| 2013 | 0.589077 |
| 2012 | 0.564184 |
| 2011 | 0.554325 |
| 2010 | 0.542511 |
| 2009 | 0.520431 |
| 2008 | 0.504517 |
| 2007 | 0.497566 |
| 2006 | 0.502503 |
| 2005 | 0.515867 |
| 2004 | 0.522803 |
| 2003 | 0.514941 |
| 2002 | 0.497889 |
| 2001 | 0.474979 |
| 2000 | 0.450323 |
| 1999 | 0.428108 |
| 1998 | 0.411054 |
| 1997 | 0.399789 |
| 1996 | 0.393107 |
| 1995 | 0.404564 |
| 1994 | 0.456063 |
| 1993 | 0.515591 |
| 1992 | 0.528332 |
| 1991 | 0.511699 |
| 1990 | 0.466444 |
| 1989 | 0.434411 |
| 1988 | 0.404368 |
| 1987 | 0.373962 |
| 1986 | 0.346836 |
| 1985 | 0.334791 |
| 1984 | 0.334989 |
| 1983 | 0.34236 |
| 1982 | 0.359417 |
| 1981 | 0.379327 |
| 1980 | 0.398606 |
| 1979 | 0.419147 |
| 1978 | 0.444531 |
| 1977 | 0.473024 |
| 1976 | 0.504057 |
| 1975 | 0.530126 |
| 1974 | 0.551353 |
| 1973 | 0.576325 |
| 1972 | 0.604096 |
| 1971 | 0.630167 |
| 1970 | 0.644631 |
| 1969 | 0.644442 |
| 1968 | 0.629983 |
| 1967 | 0.599939 |
| 1966 | 0.566841 |
| 1965 | 0.552352 |
| 1964 | 0.562657 |
| 1963 | 0.597272 |
| 1962 | 0.660253 |
| 1961 | 0.721065 |
| 1960 | 0.765166 |