Year	Dollars
1992-01-01	6374002
1997-01-01	7071846
2002-01-01	9685868
2003-01-01	5998649
2004-01-01	6039245
2005-01-01	8692644
2006-01-01	10478720
2007-01-01	23998666
2008-01-01	30530873
2009-01-01	26154939
2010-01-01	29651227
2011-01-01	25575353
2012-01-01	28092497
2013-01-01	29797878
2014-01-01	37192301
2015-01-01	29643516
2016-01-01	18836001