Year % 2000 0.0242190792508268 2001 0.0250512700234391 2002 0.0148689164610389 2003 0.0134678143434112 2004 0.0124732331990493 2005 0.0117913904307838 2006 0.0185895979650634 2007 0.0170879998168191 2008 0.0153474669901344 2009 0.0137426025858648 2010 0.013403650397394 2011 0.0118624395606699 2012 0.0111460454814145 2013 0.0109886257518263 2014 0.0150960307917582 2015 0.0146003143674282 2016 0.0141241132934563 2017 0.0139424083953741 2018 0.0136192811051603 2019 0.0127787883967556 2020 0.0150077710840949