Year	Dollars
1997-01-01	67533
2002-01-01	293389
2003-01-01	1283159
2004-01-01	1887940
2005-01-01	3460323
2006-01-01	4140424
2008-01-01	4517028
2009-01-01	877119
2010-01-01	1221196
2011-01-01	2174988
2012-01-01	2181375
2013-01-01	2380126
2014-01-01	3843993
2015-01-01	1909083
2016-01-01	3463341