Year	Dollars
1997-01-01	247940
2002-01-01	448632
2003-01-01	613483
2004-01-01	557876
2005-01-01	1472562
2006-01-01	644093
2007-01-01	617063
2008-01-01	1657321
2009-01-01	1531954
2010-01-01	1408505
2011-01-01	571856
2012-01-01	1096121
2013-01-01	2113370
2014-01-01	1961002
2015-01-01	2739173
2016-01-01	2599053