Year	%
2001	17.73585139381575
2002	16.698017151954822
2003	17.221107517259476
2004	18.149058109559057
2005	16.560715960955665
2006	15.291111288539659
2007	19.62784901801109
2008	17.672641173896494
2009	21.469619280569074
2010	21.7736478352896
2011	17.151870252919526
2012	18.79059205730637
2013	21.241867662922107
2014	20.34376259705592
2015	22.830923579519716
2016	21.773553504917313
2017	20.75505543688363
2018	19.151237796601972
2019	19.8778887135407
2020	23.592363863833484
2021	23.815853218774745
2022	23.77646541633809
2023	21.28730854957611