Year	Percent
2000	57.62014
2001	58.27631
2002	58.93248
2003	59.58865
2004	60.24481
2005	60.90098
2006	61.55715
2007	62.21332
2008	62.86949
2009	63.54652
2010	64.22398
2011	64.90187
2012	65.58019
2013	66.25895
2014	66.93813
2015	67.61775
2016	68.29779
2017	68.97827
2018	69.65918
2019	70.34052
2020	71.02229
2021	71.70449
2022	71.70449