Year	%
2001	20.66057081617605
2002	17.584429695591368
2003	16.17312546324748
2004	18.918996945863817
2005	17.967446787568147
2006	15.540847549917533
2007	21.906601593839735
2008	18.126925677998905
2009	23.552082783906673
2010	22.886864244366752
2011	23.536080618269338
2012	22.042638129365642
2013	21.48841317627184
2014	22.21949333661835
2015	22.857440581540292
2016	20.03914732721094
2017	22.505981704848395
2018	19.151237796601972
2019	16.793334120270586
2020	13.756372719261545
2021	16.767584506756457
2022	15.184679980086061
2023	13.179856737067