Year 2015 = 100 1995 51.9646241423 1996 45.8294377879 1997 42.5647504822 1998 59.383449168 1999 45.559065077 2000 54.5874921151 2001 66.9513581972 2002 67.8888187311 2003 71.4036639513 2004 44.2072015278 2005 46.74668352 2006 44.4725205397 2007 54.3272267969 2008 68.9829437844 2009 62.9185091738 2010 75.9424359109 2011 184.0025268943 2012 131.7548958042 2013 88.0833859992 2014 81.215413788 2015 100 2016 123.1206570178 2017 116.1869867402 2018 118.1806696659 2019 123.8155401258 2020 126.3423878756 2021 179.4061908413