Year	Percent
1999-01-01	3.825
2000-01-01	3.850
2001-01-01	3.800
2002-01-01	3.875
2003-01-01	4.225
2004-01-01	5.925
2005-01-01	5.875
2006-01-01	5.600
2007-01-01	5.325
2008-01-01	4.400
2009-01-01	5.100
2010-01-01	4.650
2011-01-01	4.600
2012-01-01	4.775
2013-01-01	5.300
2014-01-01	5.400
2015-01-01	5.325
2016-01-01	5.550
2017-01-01	5.025