Year	Dollars
1997-01-01	400658
2003-01-01	621442
2004-01-01	429581
2005-01-01	1497391
2006-01-01	1242622
2007-01-01	1453222
2008-01-01	1895895
2010-01-01	2212114
2011-01-01	3212552
2012-01-01	3371041
2013-01-01	1627058
2014-01-01	2844389
2015-01-01	4804774