Year % (cumulative) 2004 11.8645601272583 2005 12.1693296432495 2006 12.8382902145386 2007 13.2375202178955 2008 13.6933898925781 2009 13.984450340271 2010 14.911600112915 2011 15.89381980896 2012 17.0915203094482 2013 18.3955993652344 2014 20.321870803833 2015 21.0830497741699 2016 22.0196495056152 2017 22.3955001831055 2018 21.9900302886963 2019 23.7717990875244 2020 25.8106098175049 2021 29.1036891937256 2022 29.3014507293701