Year	Dollars
1992-01-01	5395787
1997-01-01	11619900
2002-01-01	6491381
2003-01-01	28291069
2004-01-01	17198823
2005-01-01	20371480
2006-01-01	33658349
2007-01-01	42922851
2008-01-01	31223522
2009-01-01	27085949
2010-01-01	31517117
2011-01-01	23918900
2012-01-01	31447759
2013-01-01	54795800
2014-01-01	41764955
2015-01-01	22361414
2016-01-01	14519146