Year	Dollars
1992-01-01	2333452
1997-01-01	6880119
2002-01-01	5680931
2003-01-01	9218411
2004-01-01	7648150
2005-01-01	13548672
2006-01-01	24851093
2007-01-01	31331065
2008-01-01	38614478
2009-01-01	27904571
2010-01-01	20114647
2011-01-01	20467767
2012-01-01	24931608
2013-01-01	21037267
2014-01-01	27123845
2015-01-01	75301586
2016-01-01	41753560