Year	Dollars
1992-01-01	4557898
1997-01-01	4480302
2002-01-01	14963372
2003-01-01	15359626
2004-01-01	21937824
2005-01-01	20716286
2006-01-01	18478745
2007-01-01	17622134
2008-01-01	14864675
2009-01-01	14390707
2010-01-01	9799651
2011-01-01	13889701
2012-01-01	24529253
2013-01-01	16343286
2014-01-01	13524606
2015-01-01	45949037
2016-01-01	17538587