Year	Dollars
1992-01-01	4576276
1997-01-01	4181974
2002-01-01	2869365
2003-01-01	2870641
2004-01-01	6039312
2005-01-01	11199883
2006-01-01	8141795
2007-01-01	11257777
2008-01-01	26066427
2009-01-01	15736971
2010-01-01	39006275
2011-01-01	28719411
2012-01-01	29222615
2013-01-01	26755165
2014-01-01	43033715
2015-01-01	36155557
2016-01-01	33379681