Year	Dollars
1992-01-01	7418706
1997-01-01	12111013
2002-01-01	11515482
2003-01-01	12258938
2004-01-01	13282782
2005-01-01	12333752
2006-01-01	16581227
2007-01-01	14586409
2008-01-01	21658246
2009-01-01	17673076
2010-01-01	18881632
2011-01-01	21181265
2012-01-01	23092072
2013-01-01	26938993
2014-01-01	22268720
2015-01-01	16207242
2016-01-01	16276048