Year 2015 = 100 1980 17.1476039164 1981 17.4701023698 1982 19.5496033797 1983 21.1287078462 1984 22.996922975 1985 23.7864602007 1986 26.2107081767 1987 29.6246700106 1988 36.7082564903 1989 38.2761616385 1990 40.8562093109 1991 41.9389105682 1992 39.6570110802 1993 40.2424984485 1994 39.032491222 1995 40.69689043 1996 39.5102349118 1997 56.2582593998 1998 57.8344735666 1999 60.2317574152 2000 48.8446590125 2001 55.712877326 2002 52.1409243653 2003 60.2647200868 2004 67.5914189387 2005 72.0485690012 2006 81.3035830427 2007 97.8954844435 2008 111.8275993686 2009 99.9337750437 2010 101.275055388 2011 99.4054736052 2012 106.6932165946 2013 110.8761773104 2014 108.3255340787 2015 100 2016 100.3131452092 2017 98.8735762717 2018 105.9743311118 2019 100.4117335132 2020 96.1844230682 2021 111.6313217466