Year % 2009 6.9026825183015 2010 11.9223384451582 2011 34.5595714508246 2012 20.3323421684588 2013 42.3009858312383 2014 43.1158491357151 2015 49.0964190398796 2016 47.0649035097112 2017 51.5954387077479 2018 50.6593651904013 2019 58.9218193285521 2020 61.1072012132737 2021 58.9618327392133