Year	Dollars
1992-01-01	6101376
1997-01-01	11007237
2002-01-01	34203693
2003-01-01	21653414
2004-01-01	68059403
2005-01-01	19343156
2006-01-01	15512413
2007-01-01	27069279
2008-01-01	23520162
2009-01-01	21361826
2010-01-01	25272269
2011-01-01	17990521
2012-01-01	40651137
2013-01-01	28776162
2014-01-01	24669462
2015-01-01	33934802
2016-01-01	31241882