Year	Percent
2002	75.19543
2003	75.20582
2004	75.21635
2005	75.22675
2006	75.23728
2007	75.92378
2008	76.61398
2009	77.31904
2010	78.03241
2011	78.75
2012	79.47228
2013	80.19895
2014	80.93018
2015	81.66581
2016	82.40861
2017	83.15841
2018	83.91557
2019	84.61949
2020	84.66547
2021	84.71404
2022	84.76504