Year	Percent
2000-01-01	167.17
2001-01-01	191.97
2002-01-01	208.83
2003-01-01	275.27
2004-01-01	296.68
2005-01-01	339.69
2006-01-01	379.42
2007-01-01	432.44
2008-01-01	317.67
2009-01-01	431.65
2010-01-01	420.03
2011-01-01	385.98
2012-01-01	449.96
2013-01-01	480.28
2014-01-01	604.18
2015-01-01	628.77
2016-01-01	668.82