Year	Percent
2000	5.68518
2001	7.25472
2002	8.82425
2003	10.39378
2004	11.96332
2005	13.53285
2006	15.10239
2007	16.67192
2008	18.24145
2009	19.81099
2010	21.38052
2011	22.95006
2012	24.51959
2013	26.08912
2014	27.65866
2015	29.22819
2016	30.79773
2017	32.36726
2018	33.93679
2019	35.50633
2020	37.07586
2021	38.6454
2022	38.6454