Year	Percent
2000	14.39751
2001	14.56882
2002	14.73878
2003	14.90738
2004	15.07464
2005	15.24055
2006	15.40511
2007	15.56831
2008	15.73017
2009	15.89067
2010	16.04983
2011	16.20764
2012	16.36409
2013	16.5192
2014	16.67295
2015	16.82535
2016	16.97641
2017	17.12611
2018	17.27446
2019	17.42147
2020	17.56712
2021	17.71142
2022	17.85438