Year % (cumulative) 2005 3.91673994064331 2006 6.29511976242065 2007 5.36543083190918 2008 6.07085990905762 2009 6.67146015167236 2010 6.97446012496948 2011 7.39944982528687 2012 7.54163980484009 2013 7.9913501739502 2014 8.75331020355225 2015 8.06536197662354 2016 27.0577335357666 2017 8.65032958984375 2018 3.17432999610901 2019 4.14662981033325 2021 8.62528419494629