Year 2015 = 100 1980 11.5415769291 1981 10.0048647341 1982 8.744339717 1983 9.2944774209 1984 7.3281699647 1985 7.8800706764 1986 11.679433696 1987 9.8447203774 1988 13.272141157 1989 8.9472173046 1990 15.8520283216 1991 12.1164493841 1992 15.9864643255 1993 16.6739588365 1994 15.5083731639 1995 20.3170982222 1996 20.3270184354 1997 19.4397776515 1998 20.017781419 1999 21.6808250356 2000 21.2087333708 2001 26.0504293224 2002 24.4189882922 2003 33.4445410864 2004 35.891702621 2005 40.6175925894 2006 47.884451932 2007 57.491113501 2008 87.8590199459 2009 65.4229166449 2010 90.1900071017 2011 88.1909392531 2012 92.7240034049 2013 100.1794552796 2014 102.8571467535 2015 100 2016 106.5973429383 2017 112.7676773618 2018 124.2408390252 2019 135.103841739 2020 134.3880601584 2021 171.8187905715