Year	Dollars
1992-01-01	9750702
1997-01-01	6905913
2002-01-01	9406465
2003-01-01	13995177
2004-01-01	19548170
2005-01-01	18959325
2006-01-01	30835575
2007-01-01	38707437
2008-01-01	47257746
2009-01-01	26191401
2010-01-01	44813627
2011-01-01	46205148
2012-01-01	49958694
2013-01-01	29940452
2014-01-01	26346651
2015-01-01	18764234
2016-01-01	17691320