Year	Dollars
1992-01-01	6247740
1997-01-01	15636171
2002-01-01	14966936
2003-01-01	18671414
2004-01-01	21906518
2005-01-01	22629116
2006-01-01	34374076
2007-01-01	41934858
2008-01-01	41850028
2009-01-01	22109128
2010-01-01	35873364
2011-01-01	23332540
2012-01-01	24475529
2013-01-01	21691955
2014-01-01	23602547
2015-01-01	16290445
2016-01-01	28184323