Year	Dollars
1992-01-01	6923496
1997-01-01	6722111
2002-01-01	4622416
2003-01-01	7119173
2004-01-01	9766966
2005-01-01	8975236
2006-01-01	15831313
2007-01-01	13775983
2008-01-01	14995021
2009-01-01	15331696
2010-01-01	24010539
2011-01-01	29735014
2012-01-01	16583146
2013-01-01	16098713
2014-01-01	21474280
2015-01-01	17997374
2016-01-01	16716832