Year 2015 = 100 1980 32.0179963677 1981 30.0503686612 1982 29.2451257799 1983 32.2800503775 1984 34.9661755187 1985 42.627777114 1986 41.2528077566 1987 71.9741250148 1988 89.1400531442 1989 104.2229164847 1990 67.167872397 1991 43.8698493543 1992 34.4509118836 1993 25.3284796686 1994 40.7197042255 1995 34.334184011 1996 35.3318116259 1997 37.3251151991 1998 31.608706403 1999 38.2584073812 2000 52.7402035589 2001 51.2809826914 2002 60.0873321972 2003 71.3441115864 2004 78.3910002138 2005 83.4775338399 2006 97.1492821398 2007 104.071748083 2008 111.3822122592 2009 117.9531108453 2010 121.41790146 2011 115.1198926065 2012 111.9475015913 2013 112.5730943885 2014 106.5354248922 2015 100 2016 123.3397507859 2017 115.7111918248 2018 113.7271897512 2019 124.2361907931 2020 115.3293817054 2021 129.312578628