Year	Dollars
1992-01-01	4446686
1997-01-01	3833822
2002-01-01	5457913
2003-01-01	4516268
2004-01-01	5466517
2005-01-01	6306887
2006-01-01	14764912
2007-01-01	39770546
2008-01-01	20627409
2009-01-01	34478207
2010-01-01	22052241
2011-01-01	29197638
2012-01-01	26456242
2013-01-01	28061369
2014-01-01	42287858
2015-01-01	59433809
2016-01-01	51639191