Year 2010 = 100 1960 5.75167508638488 1961 5.60044836385121 1962 5.57346366986188 1963 5.6611639253033 1964 6.04288490895903 1965 5.93663267639258 1966 5.93831921974969 1967 6.01927330171767 1968 5.9405679442652 1969 5.92257814827606 1970 6.43978478296374 1971 6.08898376116995 1972 6.44596877534062 1973 7.80700927812687 1974 9.78476247467133 1975 9.95678989883431 1976 13.4147659966099 1977 19.7578556261545 1978 15.8360801005396 1979 17.0375753931076 1980 19.7289780119552 1981 21.6960278271816 1982 23.5461179237022 1983 25.1463395301888 1984 26.6229559793382 1985 30.3018707690111 1986 40.1474867295702 1987 40.4409492966178 1988 42.663449770326 1989 46.8023618174345 1990 55.6392002037467 1991 59.4940862065833 1992 60.799383249538 1993 65.3830080454222 1994 70.5213940527199 1995 77.8917170564884 1996 81.6346938738889 1997 82.4672344173232 1998 77.5389771774535 1999 76.4092526213884 2000 78.9016908096105 2001 77.6527470856878 2002 74.4126970588932 2003 76.1833077101754 2004 80.4961415968463 2005 85.7558457988979 2006 91.5253061588476 2007 95.8205786700121 2008 106.173662017755 2009 95.3255298275257 2010 100 2011 114.437923523726 2012 112.093662810658 2013 108.554247046506 2014 110.843663684366 2015 111.345097028019 2016 108.445562001651