Year % 2000 0.0140066303012145 2001 0.0136097961578956 2002 0.013050663020219 2003 0.0122515982806683 2004 0.010998656880683 2005 0.0107878031163926 2006 0.010082420321392 2007 0.00985425280697412 2008 0.00941601382764192 2009 0.00965813730125864 2010 0.00937820172122136 2011 0.00953497211014521 2012 0.00945717512259251 2013 0.00945112090376364 2014 0.0090111344043644 2015 0.00906457202991382 2016 0.00880494069564266 2017 0.00887350486501558 2018 0.00511102335246613 2019 0.00494083526690867 2020 0.00480275431525232