| 年份 | 冰岛 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.324815 |
| 2020 | 0.330183 |
| 2019 | 0.335586 |
| 2018 | 0.343047 |
| 2017 | 0.352359 |
| 2016 | 0.360721 |
| 2015 | 0.365763 |
| 2014 | 0.370205 |
| 2013 | 0.374347 |
| 2012 | 0.377904 |
| 2011 | 0.383055 |
| 2010 | 0.386743 |
| 2009 | 0.389326 |
| 2008 | 0.393807 |
| 2007 | 0.401199 |
| 2006 | 0.424647 |
| 2005 | 0.434733 |
| 2004 | 0.441669 |
| 2003 | 0.445564 |
| 2002 | 0.44866 |
| 2001 | 0.452682 |
| 2000 | 0.45874 |
| 1999 | 0.465064 |
| 1998 | 0.474371 |
| 1997 | 0.490543 |
| 1996 | 0.498297 |
| 1995 | 0.504733 |
| 1994 | 0.507479 |
| 1993 | 0.511897 |
| 1992 | 0.520959 |
| 1991 | 0.527547 |
| 1990 | 0.533697 |
| 1989 | 0.533909 |
| 1988 | 0.540562 |
| 1987 | 0.549095 |
| 1986 | 0.555144 |
| 1985 | 0.555084 |
| 1984 | 0.559473 |
| 1983 | 0.565456 |
| 1982 | 0.572992 |
| 1981 | 0.576369 |
| 1980 | 0.58298 |
| 1979 | 0.580326 |
| 1978 | 0.581559 |
| 1977 | 0.581608 |
| 1976 | 0.576869 |
| 1975 | 0.578037 |
| 1974 | 0.580831 |
| 1973 | 0.584032 |
| 1972 | 0.588131 |
| 1971 | 0.591951 |
| 1970 | 0.591866 |
| 1969 | 0.59006 |
| 1968 | 0.595569 |
| 1967 | 0.603771 |
| 1966 | 0.613591 |
| 1965 | 0.62407 |
| 1964 | 0.634978 |
| 1963 | 0.646367 |
| 1962 | 0.657974 |
| 1961 | 0.670282 |
| 1960 | - |