Year	Dollars
1992-01-01	6252820
1997-01-01	4382703
2002-01-01	3697946
2003-01-01	3973594
2004-01-01	3579664
2005-01-01	5431594
2006-01-01	4410159
2007-01-01	5952890
2009-01-01	9175264
2010-01-01	15713918
2011-01-01	21649732
2012-01-01	14983135
2013-01-01	15470005
2014-01-01	19674592
2015-01-01	18525088
2016-01-01	37215906