Year	Percent
1995-01-01	8938.54
1996-01-01	8154.59
1997-01-01	6576.09
1998-01-01	5466.27
1999-01-01	6248.26
2000-01-01	6660.67
2001-01-01	6250.05
2002-01-01	5646.70
2003-01-01	5663.01
2004-01-01	6660.17
2005-01-01	6216.26
2006-01-01	6910.06
2007-01-01	7273.60
2008-01-01	8005.68
2009-01-01	5827.94
2010-01-01	5248.26
2011-01-01	8390.04
2012-01-01	3133.77
2013-01-01	2213.43
2014-01-01	1674.74
2015-01-01	1087.05
2016-01-01	1032.14