Year	Dollars
1992-01-01	41932043
1997-01-01	116608393
2002-01-01	72451749
2003-01-01	74713302
2004-01-01	151718315
2005-01-01	203855357
2006-01-01	153175780
2007-01-01	248941720
2008-01-01	481658104
2009-01-01	380998952
2010-01-01	369218133
2011-01-01	511457095
2012-01-01	525633879
2013-01-01	482151714
2014-01-01	514297807
2015-01-01	352023976
2016-01-01	455660743