Year Percent 2004 212.4305 2005 226.49296 2006 132.31461 2007 133.6778 2008 185.16634 2009 107.50642 2010 36.49995 2011 213.76762 2012 366.36089 2013 209.62142 2014 148.84422 2015 180.93084 2016 31.00016 2017 152.81849 2018 111.04174 2019 53.78363 2020 375.34854 2021 216.84758