Year	Percent
2000	15.91107
2001	16.17488
2002	16.4387
2003	16.70252
2004	17.4927
2005	18.29926
2006	19.12218
2007	19.96147
2008	20.81714
2009	21.68917
2010	22.57757
2011	23.48234
2012	24.40348
2013	25.34099
2014	26.29487
2015	27.26512
2016	28.25174
2017	29.25473
2018	30.27409
2019	31.30981
2020	32.36191
2021	33.43038
2022	34.51521