Year	Dollars
1997-01-01	359520
2002-01-01	230046
2004-01-01	193225
2006-01-01	631550
2007-01-01	1128156
2008-01-01	575244
2009-01-01	700999
2010-01-01	1551231
2011-01-01	1319444
2012-01-01	831753
2013-01-01	1514476
2014-01-01	2804586
2015-01-01	4270488
2016-01-01	2612667