Year 2015 = 100 1980 26.4918044577 1981 22.8234867854 1982 20.7794894618 1983 16.8809379708 1984 13.404458138 1985 15.9103842383 1986 10.4919243037 1987 17.7106929255 1988 23.91428162 1989 27.2798149448 1990 26.5561359928 1991 21.9879886723 1992 15.3320701823 1993 16.7658718017 1994 18.8107823542 1995 15.6215536549 1996 15.6954201467 1997 13.8482884335 1998 15.6248376865 1999 16.0887183232 2000 13.507307083 2001 14.9460233225 2002 14.4758509416 2003 14.8405819201 2004 23.8496005158 2005 27.3936182753 2006 57.0704984622 2007 69.8924512537 2008 77.1766870807 2009 65.2697555515 2010 108.9874009071 2011 136.2435185648 2012 141.748797745 2013 160.4523705903 2014 146.7370471962 2015 100 2016 96.4561279573 2017 121.0924415969 2018 136.7484870789 2019 106.6697747584 2020 118.3855039398 2021 168.6383604515