Year 2015 = 100 1980 32.4289252563 1981 25.8356740774 1982 23.6379959621 1983 19.9402155068 1984 16.2293162038 1985 18.9644334138 1986 22.277647303 1987 24.2940467903 1988 22.5490231446 1989 22.8882700544 1990 22.7421195789 1991 22.8045696328 1992 25.5052092097 1993 22.9351075929 1994 20.7894711896 1995 30.9080605234 1996 29.5454168821 1997 28.9126147765 1998 31.3787805278 1999 30.3984722867 2000 26.0400462163 2001 26.7290069105 2002 27.2655353718 2003 34.3991726494 2004 49.4610901245 2005 61.5278561988 2006 61.0606715734 2007 70.1109166134 2008 82.7057136569 2009 73.014934831 2010 82.3453773304 2011 70.4977105904 2012 102.4910393076 2013 130.9558773655 2014 117.262048245 2015 100 2016 88.165093117 2017 100.8560211836 2018 115.0794136519 2019 109.9699330169 2020 111.7309492636 2021 146.9422726496