Year	Dollars
1992-01-01	6486633
1997-01-01	22631985
2002-01-01	5492342
2003-01-01	11712889
2004-01-01	30624146
2005-01-01	9772864
2006-01-01	9925830
2007-01-01	14899728
2008-01-01	28765237
2009-01-01	22782874
2010-01-01	29937613
2011-01-01	136443634
2012-01-01	41549553
2013-01-01	59891359
2014-01-01	71409859
2015-01-01	64813488
2016-01-01	27902531