| 年份 | 科威特 |
|---|---|
| 2023 | - |
| 2022 | 0.608903 |
| 2021 | 0.587585 |
| 2020 | 0.56787 |
| 2019 | 0.533303 |
| 2018 | 0.493395 |
| 2017 | 0.462785 |
| 2016 | 0.432921 |
| 2015 | 0.381067 |
| 2014 | 0.332597 |
| 2013 | 0.321516 |
| 2012 | 0.322567 |
| 2011 | 0.322043 |
| 2010 | 0.315449 |
| 2009 | 0.310777 |
| 2008 | 0.314026 |
| 2007 | 0.320602 |
| 2006 | 0.329159 |
| 2005 | 0.336392 |
| 2004 | 0.331122 |
| 2003 | 0.316869 |
| 2002 | 0.30512 |
| 2001 | 0.295966 |
| 2000 | 0.288808 |
| 1999 | 0.282312 |
| 1998 | 0.275088 |
| 1997 | 0.267225 |
| 1996 | 0.259052 |
| 1995 | 0.259294 |
| 1994 | 0.280247 |
| 1993 | 0.299762 |
| 1992 | 0.291095 |
| 1991 | 0.271754 |
| 1990 | 0.241322 |
| 1989 | 0.22435 |
| 1988 | 0.212721 |
| 1987 | 0.204606 |
| 1986 | 0.199089 |
| 1985 | 0.200151 |
| 1984 | 0.206506 |
| 1983 | 0.215488 |
| 1982 | 0.22833 |
| 1981 | 0.242536 |
| 1980 | 0.257325 |
| 1979 | 0.273983 |
| 1978 | 0.295441 |
| 1977 | 0.319774 |
| 1976 | 0.343121 |
| 1975 | 0.358005 |
| 1974 | 0.362491 |
| 1973 | 0.359641 |
| 1972 | 0.351642 |
| 1971 | 0.345842 |
| 1970 | 0.341584 |
| 1969 | 0.33716 |
| 1968 | 0.33905 |
| 1967 | 0.34901 |
| 1966 | 0.361591 |
| 1965 | 0.382343 |
| 1964 | 0.415683 |
| 1963 | 0.454884 |
| 1962 | 0.497139 |
| 1961 | 0.530588 |
| 1960 | 0.551641 |