Year	Dollars
1997-01-01	24424
2002-01-01	228098
2003-01-01	635629
2004-01-01	183117
2006-01-01	1181073
2007-01-01	2826155
2008-01-01	2431132
2009-01-01	1395756
2010-01-01	6704092
2012-01-01	11856640
2013-01-01	6911310
2014-01-01	2407998
2015-01-01	2595967
2016-01-01	921507