Year	%
2006	21.598496792969907
2007	33.60287417577257
2008	34.351029728479084
2009	30.883046296252036
2010	26.15993494367083
2011	36.20741385121379
2012	34.69010584414149
2013	25.226266140362842
2014	21.73593643542047
2015	20.836006012970955
2016	25.869464435311833
2017	27.537310119872217
2018	25.97412384654241
2019	21.414799483801197
2020	18.468375330237382
2021	16.13269471326266
2022	16.989600672894408
2023	16.639209293070355