Year	Dollars
1992-01-01	233194894
1997-01-01	345639899
2002-01-01	610462753
2003-01-01	556940463
2004-01-01	586226941
2005-01-01	740754646
2006-01-01	847456828
2007-01-01	843418796
2008-01-01	1333701736
2009-01-01	1126091248
2010-01-01	1149005733
2011-01-01	1424428212
2012-01-01	1312163350
2013-01-01	1353198687
2014-01-01	1629814709
2015-01-01	1581062120
2016-01-01	1582269442