Year	Percent
2000-01-01	1.90153
2001-01-01	2.08000
2002-01-01	2.51000
2003-01-01	2.85000
2004-01-01	3.26000
2005-01-01	3.78000
2006-01-01	4.15000
2007-01-01	4.35000
2008-01-01	4.76000
2009-01-01	5.49000
2010-01-01	5.87000
2011-01-01	6.14000
2012-01-01	6.73000
2013-01-01	7.26000
2014-01-01	7.86000
2015-01-01	8.12000
2016-01-01	8.42000