Year	Percent
2000-01-01	73.2016567916698
2001-01-01	73.6240772060516
2002-01-01	75.0018022222462
2003-01-01	75.0767304692521
2004-01-01	75.3201694605177
2005-01-01	75.0167276050431
2006-01-01	74.7943555528789
2007-01-01	74.9191820587491
2008-01-01	74.5705988779245
2009-01-01	73.6952179659241
2010-01-01	74.0263071699003
2011-01-01	74.6050156061747
2012-01-01	75.0513059027739
2013-01-01	75.1712604694849
2014-01-01	75.9979728033331
2015-01-01	75.9474792974755
2016-01-01	75.8827769167034
2017-01-01	76.2564575343991