Year 2014-2016 = 100 1961 16.48 1962 16.51 1963 18.69 1964 21.28 1965 20.04 1966 22.59 1967 20.24 1968 24.18 1969 23.58 1970 25.37 1971 26.19 1972 25.98 1973 28.07 1974 28.07 1975 32.96 1976 33.29 1977 33.69 1978 33.21 1979 36.98 1980 37.15 1981 41.44 1982 38.17 1983 38.02 1984 39.36 1985 43.28 1986 44.29 1987 45.64 1988 46.92 1989 47.68 1990 51.63 1991 49.58 1992 52.51 1993 50.17 1994 51.6 1995 58.22 1996 59.86 1997 63.39 1998 66.06 1999 66.41 2000 72.12 2001 69.16 2002 67.86 2003 67.61 2004 70.7 2005 72.15 2006 75.15 2007 71.95 2008 77.42 2009 72.05 2010 75.95 2011 77.72 2012 83.99 2013 86.32 2014 94.7 2015 104.41 2016 100.89 2017 109.42 2018 114.55 2019 116.76 2020 119.18 2021 119.97 2022 121.86