Year % 2000 0.0347903560852058 2001 0.0260776151819912 2002 0.0258363436863179 2003 0.0252430121035532 2004 0.0184573937953726 2005 0.0188075128106907 2006 0.0187007110374446 2007 0.0177181141877633 2008 0.0169281613879259 2009 0.0158146841769395 2010 0.0148078559448552 2011 0.0139902793629255 2012 0.0135581033756808 2013 0.0125489214424251 2014 0.0121944108705016 2015 0.0119680335644323 2016 0.0115838902440248 2017 0.0116446494073366 2018 0.00756188140993408 2019 0.00738837722347836 2020 0.0114917402486135