Year	Dollars
1992-01-01	181221303
1997-01-01	270573176
2002-01-01	743083261
2003-01-01	775880254
2004-01-01	817885525
2005-01-01	673454704
2006-01-01	514949349
2007-01-01	515854497
2008-01-01	637316389
2009-01-01	892355594
2010-01-01	1098741898
2011-01-01	954040505
2012-01-01	1080266718
2013-01-01	1038509439
2014-01-01	759562469
2015-01-01	678917614
2016-01-01	478971735