Year	Dollars
1992-01-01	1978797
1997-01-01	13494639
2002-01-01	9978271
2003-01-01	7332466
2004-01-01	13706605
2005-01-01	15501387
2006-01-01	6636246
2007-01-01	11982131
2008-01-01	12545629
2009-01-01	16687242
2010-01-01	19782232
2011-01-01	35421021
2012-01-01	47692599
2013-01-01	52553565
2014-01-01	69971953
2015-01-01	40974121
2016-01-01	37265491