Year % (cumulative) 2005 4.16646671295166 2006 3.99328351020813 2007 4.86182022094727 2008 4.54023218154907 2009 4.52191257476807 2010 4.93371820449829 2011 5.39175987243652 2012 4.51393985748291 2013 5.06932067871094 2014 6.1597900390625 2015 9.33250999450684 2016 10.7509298324585 2017 6.14961528778076 2018 9.20921039581299 2019 8.16847038269043