Year	Percent
2000	54.136
2001	55.97305
2002	57.83743
2003	59.72914
2004	61.64817
2005	63.59453
2006	65.56822
2007	67.56923
2008	69.59757
2009	71.65324
2010	73.73624
2011	75.84656
2012	77.98422
2013	80.1492
2014	82.3415
2015	84.56114
2016	85.98025
2017	87.39937
2018	88.81849
2019	90.2376
2020	91.65672
2021	93.07584
2022	94.49496