Year	Dollars
1992-01-01	5548045
1997-01-01	14610962
2002-01-01	9034879
2003-01-01	14358006
2004-01-01	22534091
2005-01-01	30850201
2006-01-01	28137701
2007-01-01	12921415
2008-01-01	16791289
2009-01-01	20977028
2010-01-01	22238073
2011-01-01	11248895
2012-01-01	11484656
2013-01-01	7844098
2014-01-01	12585506
2015-01-01	24112822
2016-01-01	25731963