Year	Percent
2001	49.15923
2002	49.50335
2003	55.9232
2004	63.56779
2005	67.58543
2006	68.62783
2007	72.3841
2008	78.86789
2009	79.65332
2010	77.738
2011	89.78181
2012	100.32231
2013	100.63155
2014	99.11504
2015	100.87048
2016	101.00301
2017	100.38384