Year	Dollars
1992-01-01	4813743
1997-01-01	28018559
2002-01-01	10717563
2003-01-01	8468013
2004-01-01	11700038
2005-01-01	43604479
2006-01-01	30186209
2007-01-01	33860204
2008-01-01	23949519
2009-01-01	28616819
2010-01-01	44549869
2011-01-01	28760791
2012-01-01	30076259
2013-01-01	56131485
2014-01-01	33397781
2015-01-01	31988384
2016-01-01	53411995