Year	Percent
2000	96.28403
2001	96.52282
2002	96.75547
2003	96.98242
2004	97.20435
2005	97.42119
2006	97.63321
2007	97.84036
2008	98.04288
2009	98.24073
2010	98.43405
2011	98.62186
2012	98.80529
2013	98.8642
2014	98.92325
2015	98.98231
2016	99.04137