Year	Percent
2000-01-01	26.100
2001-01-01	28.000
2002-01-01	29.925
2003-01-01	31.800
2004-01-01	33.400
2005-01-01	35.175
2006-01-01	37.225
2007-01-01	40.025
2008-01-01	42.200
2009-01-01	44.675
2010-01-01	42.825
2011-01-01	45.875
2012-01-01	48.325
2013-01-01	49.525
2014-01-01	50.400
2015-01-01	52.400
2016-01-01	54.225
2017-01-01	56.625