Year	%
1997	10.989910008181079
1998	10.4504048582996
2000	12.26247783126425
2001	12.577890606969767
2002	13.677961909473163
2003	12.83407572383073
2004	14.404713531084928
2005	16.585804132973948
2006	16.950978631711266
2007	17.138707334785774
2008	17.193173565722592
2009	16.76086188625927
2010	17.760219855719683
2011	19.377162629757787
2012	19.709340300457217
2013	20.227774944756078
2014	19.419970631424377
2015	21.59918685414196
2016	21.860149355057704
2017	22.057161311157763
2018	21.895973154362423
2019	21.968002752451415
2020	22.60286067455414
2021	24.07145383799082
2022	24.076755973931945
2023	24.351558126516153