Year 2010 = 100 1964 10.7819857071809 1965 12.0138275741905 1966 13.4846701243758 1967 14.4685263201919 1968 14.5251317451187 1969 15.9465568608398 1970 15.1019679804618 1971 14.6332256366875 1972 14.5964928465887 1973 15.7599640472782 1974 16.9354133317485 1975 18.4797875953502 1976 19.4923349409286 1977 20.7164950992545 1978 26.8029587174458 1979 25.1843203346028 1980 27.6358348069589 1981 30.7309716456023 1982 33.883603286202 1983 37.4770284084661 1984 42.1532723009057 1985 46.0054240319728 1986 47.5194538168201 1987 49.5892666872442 1988 52.607743789946 1989 53.4030885503404 1990 57.9164305039041 1991 64.8062242716584 1992 70.8719258780402 1993 78.7199663450649 1994 82.7446024820007 1995 88.7336443524408 1996 92.3079045407194 1997 95.5851082522243 1998 99.1306210395248 1999 101.756216995526 2000 98.8052867026555 2001 90.0966504647885 2002 81.2692986404266 2003 79.4885648430049 2004 77.7417497845817 2005 79.802066116321 2006 80.9665927386088 2007 86.0278045970127 2008 94.9409122060595 2009 97.2763639485596 2010 100 2011 115.518481531756 2012 122.518675005754 2013 125.711288725735 2014 128.769770733721 2015 142.164780042916 2016 178.919883449612 2017 225.087687557724 2018 254.732194858593 2019 249.224429256178 2020 252.830797888857 2021 260.082820215574 2022 271.813339537122 2023 278.263946612131