Year % 2000 0.0213381570090113 2001 0.0200296932533922 2002 0.0183528164014363 2003 0.018160440850059 2004 0.0125993615131568 2005 0.0123255187236087 2006 0.0112302808805145 2007 0.0108054868183483 2008 0.00960339641049604 2009 0.0124509824866942 2010 0.0109925743967204 2011 0.00748436659276677 2012 0.00671267577368871 2013 0.00571198924291125 2014 0.00797478640003456 2015 0.00786492563608689 2016 0.0047916149346033 2017 0.00458818022844571 2018 0.00401564585168421 2019 0.00430405508496876 2020 0.00423099363631712