Year 2010 = 100 1964 0.00114024641178587 1965 0.00144178212213129 1966 0.00163264358808005 1967 0.00149513441211262 1968 0.00161317133938467 1969 0.00173120826652556 1970 0.00178366912309092 1971 0.00195416690705948 1972 0.00215089511917956 1973 0.00253123632914724 1974 0.00299026882409409 1975 0.00388210338570513 1976 0.00605922893316736 1977 0.0131152141412623 1978 0.0227013427441019 1979 0.0350602462032355 1980 0.0526149603314175 1981 0.113913285358869 1982 0.139310897543692 1983 0.310488486647225 1984 0.433644719172345 1985 0.478333718424501 1986 0.595838386589673 1987 0.833071844650769 1988 1.09431707393563 1989 1.37034424249229 1990 1.88092171488364 1991 2.22007896670963 1992 2.44333269943057 1993 3.05318469233027 1994 3.8125195242749 1995 6.079502868492 1996 8.91018139530741 1997 11.3948040676584 1998 13.061199205853 1999 13.6966785113 2000 19.2083497512298 2001 27.1816389781647 2002 29.7260938269276 2003 38.5764377123893 2004 45.536683616152 2005 52.5670885638145 2006 58.7064955286905 2007 65.008207238338 2008 75.7310767414419 2009 90.3069978698952 2010 100 2011 108.72845937093 2012 120.891195539437 2013 134.994594893508 2014 155.904739308264 2015 182.642354549914 2016 214.521910357024 2017 241.062392815469 2018 259.886388974227 2019 278.45173709811 2020 305.983066637367 2021 336.492909542398 2022 441.666780384402 2023 609.972588583069