Year	Percent
2000	23.04528
2001	23.49068
2002	23.93607
2003	24.38147
2004	24.82687
2005	25.27226
2006	25.78456
2007	26.29918
2008	26.81612
2009	27.33537
2010	27.85694
2011	28.38083
2012	28.90703
2013	29.43555
2014	29.96639
2015	30.49955
2016	31.03502
2017	31.57282
2018	32.11292
2019	32.65535
2020	33.20009
2021	33.74716
2022	34.29653