Year	Dollars
1992-01-01	5223346
1997-01-01	15122569
2002-01-01	13675997
2003-01-01	14229680
2004-01-01	22624634
2005-01-01	197709087
2006-01-01	115284940
2007-01-01	82297076
2008-01-01	94767139
2009-01-01	85277224
2010-01-01	95056203
2011-01-01	138121348
2012-01-01	141978914
2013-01-01	157136980
2014-01-01	140297782
2015-01-01	118310182
2016-01-01	77380700