Year 2010 = 100 1985 37.8710181288273 1986 31.1904099229299 1987 27.0812378678958 1988 27.7646760475273 1989 29.476688687504 1990 29.7295608139677 1991 28.7112379263168 1992 27.4827577984293 1993 28.9811960072712 1994 38.2091035088547 1995 45.8021827479985 1996 47.8819351542961 1997 49.3262963171747 1998 53.2406884910137 1999 53.4388855631069 2000 56.0051752162291 2001 60.9478499339941 2002 65.5753023354285 2003 70.3777384508461 2004 73.3474593441042 2005 77.4781194458834 2006 80.8994755998429 2007 83.1676851961002 2008 88.616638076126 2009 92.7737027694463 2010 100 2011 104.805389221557 2012 108.637724550898 2013 111.84131736527 2014 116.661676646707 2015 118.617662311179 2016 120.292471529847 2017 121.187874251497 2018 122.472555526802 2019 124.346722780622 2020 130.273952095808 2021 130.14745508982 2022 136.377245508982