Year	Dollars
1997-01-01	2133640
2002-01-01	933908
2003-01-01	812538
2004-01-01	1739293
2005-01-01	7039868
2006-01-01	6207055
2007-01-01	6628423
2008-01-01	17731910
2011-01-01	13295102
2013-01-01	7292360
2014-01-01	1987537
2015-01-01	2801422
2016-01-01	1197840