Year	Dollars
1992-01-01	14691650
1997-01-01	11846742
2002-01-01	5138261
2003-01-01	6281033
2004-01-01	6847613
2005-01-01	9372291
2006-01-01	11815281
2007-01-01	13972605
2008-01-01	14861282
2009-01-01	11654059
2010-01-01	14970644
2011-01-01	30093955
2012-01-01	24642335
2013-01-01	23032551
2014-01-01	20862040
2015-01-01	22830950
2016-01-01	21752913