Year 2004-2006 = 100 1961 28.87 1962 29.9 1963 30.32 1964 31.7 1965 32.52 1966 33.13 1967 34.03 1968 34.31 1969 36.49 1970 38.29 1971 38.35 1972 36.86 1973 39.06 1974 38.21 1975 36.84 1976 36.47 1977 35.51 1978 35.61 1979 34.73 1980 34.74 1981 33.99 1982 34.53 1983 35.16 1984 35.57 1985 36.06 1986 37.38 1987 37.93 1988 37.78 1989 37.81 1990 37.91 1991 39.52 1992 42.21 1993 41.79 1994 47.53 1995 45.97 1996 49 1997 48.8 1998 56.71 1999 53.89 2000 62.63 2001 71.14 2002 80.82 2003 86.75 2004 93.45 2005 101.73 2006 104.82 2007 117.75 2008 127.41 2009 159.41 2010 168.65 2011 184.53 2012 152.82 2013 206.96 2014 176.78 2015 181.06 2016 192.85