Year	Dollars
1992-01-01	6909084
1997-01-01	11097119
2002-01-01	36137091
2003-01-01	29841365
2004-01-01	28704278
2005-01-01	24747187
2006-01-01	34475169
2007-01-01	60647841
2008-01-01	77383673
2009-01-01	230593770
2010-01-01	278573828
2011-01-01	340378533
2012-01-01	424032537
2013-01-01	453359452
2014-01-01	444199734
2015-01-01	457369085