Year % 2000 0.01613299416392593 2001 0.015262824830551046 2002 0.014796889866019472 2003 0.014565672812225953 2004 0.013881059479035018 2005 0.013126481350442983 2006 0.01234265464214479 2007 0.011763652040394203 2008 0.011939925207323607 2009 0.011819054666492612 2010 0.011368768957781765 2011 0.010809991713513798 2012 0.010469162214736894 2013 0.010057501116522465 2014 0.009801831610312515 2015 0.009496832868809604 2016 0.009692667672402863 2017 0.00935493957456142 2018 0.00898046419581044 2019 0.008563305103811068 2020 0.008658198977849115