Year	Dollars
1992-01-01	3925598
1997-01-01	14425623
2002-01-01	2848689
2003-01-01	8548685
2004-01-01	11949711
2005-01-01	12107442
2006-01-01	15922392
2007-01-01	23292907
2008-01-01	39181392
2009-01-01	16724732
2010-01-01	25518829
2011-01-01	19765259
2012-01-01	22711816
2013-01-01	27704505
2014-01-01	20970155
2015-01-01	28501014
2016-01-01	25023853