Year	Percent
2000	55.26931
2001	55.3972
2002	55.5252
2003	55.65331
2004	55.78151
2005	55.90982
2006	56.03823
2007	56.16675
2008	56.29536
2009	56.42408
2010	56.5529
2011	56.68183
2012	56.81085
2013	56.93998
2014	57.06921
2015	57.19854
2016	57.32798
2017	57.45752
2018	57.58716
2019	57.71691
2020	57.84675
2021	57.9471
2022	58.04744