1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967
|
2.00 2.07 2.56 3.00 3.17 3.05 3.16 3.77 4.20 3.83 4.48 4.82 4.50 4.50 4.50 4.50 4.54 5.63 5.63
|
|
|
|
1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986
|
6.31 7.95 7.91 5.72 5.25 8.02 10.80 7.86 6.84 6.82 9.06 12.67 15.27 18.87 14.86 10.79 12.04 9.93 8.33
|
|
|
|
|
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005
|
8.20 9.32 10.87 10.01 8.46 6.25 6.00 7.14 8.83 8.27 8.44 8.35 7.99 9.23 6.92 4.68 4.12 4.34 6.19
|
|
|
|
|
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
|
7.96 8.05 5.09 3.25 3.25 3.25 3.25 3.25 3.25 3.26 3.51 4.10 4.90
|
|
|
|
|
|