Year	Dollars
1992-01-01	4048310
1997-01-01	4082534
2002-01-01	8470792
2003-01-01	8782719
2004-01-01	10436568
2005-01-01	38380189
2006-01-01	14833154
2007-01-01	43402526
2008-01-01	19211351
2009-01-01	21975185
2010-01-01	30503326
2011-01-01	12643473
2012-01-01	10386537
2013-01-01	12954540
2014-01-01	9967711
2015-01-01	15769540
2016-01-01	9187728