Year	%
2007	8.29268685998542
2008	6.16079889871223
2009	27.1980586657819
2010	14.8235944117762
2011	10.3765643433033
2012	8.10539058575299
2013	6.95836224281356
2014	6.10431821561778
2015	7.27920989434564
2016	9.66494478806436
2017	11.9837030549506
2018	10.9511985266963
2019	8.90727795611646
2020	11.6305661246947
2021	5.82203274352002