Year % 2001 0.5148470209957088 2002 4.676585244910039 2003 1.468679127803506 2004 0.6113649641226605 2005 0.312845406913684 2006 1.41356267376407 2007 2.673213600435935 2008 2.204690474731363 2009 9.248011791319797 2010 -13.170041740898158 2011 5.223912625631515 2012 2.5518723420210923 2013 5.835557367729047 2014 5.805371550399928 2015 3.827736643254561 2016 4.789413236736893 2017 5.7807814781707885 2018 6.959910976806487 2019 7.098875132755744