Year	Dollars
1992-01-01	19655311
1997-01-01	9468362
2002-01-01	13450133
2003-01-01	15780635
2004-01-01	16822128
2005-01-01	13471237
2006-01-01	11427733
2007-01-01	12884504
2008-01-01	15370946
2009-01-01	11164845
2010-01-01	23100490
2011-01-01	31058122
2012-01-01	15260182
2013-01-01	14831791
2014-01-01	23790047
2015-01-01	18101905
2016-01-01	14258346