Year	Dollars
1997-01-01	149549
2004-01-01	240598
2005-01-01	58821
2006-01-01	175488
2007-01-01	663370
2008-01-01	696395
2009-01-01	237969
2011-01-01	2486161
2012-01-01	3742994
2013-01-01	1158501
2014-01-01	1437282
2015-01-01	1368262
2016-01-01	612980