Year	Dollars
1997-01-01	1201206
2003-01-01	19270047
2004-01-01	18155259
2005-01-01	18559755
2006-01-01	7253018
2007-01-01	4960510
2008-01-01	3514369
2009-01-01	4657544
2010-01-01	4969853
2011-01-01	5901481
2012-01-01	5866808
2013-01-01	6799196
2014-01-01	9801682
2015-01-01	11283121
2016-01-01	10381910