Year	Percent
2000	27.56866
2001	27.88939
2002	28.23157
2003	28.57424
2004	28.9174
2005	29.26105
2006	29.60518
2007	29.9498
2008	30.29491
2009	30.64051
2010	30.9866
2011	31.33317
2012	31.68023
2013	32.02778
2014	32.37582
2015	32.72435
2016	33.07336
2017	33.42286
2018	33.77285
2019	34.12333
2020	34.47429
2021	34.82574
2022	35.17768