Year	Dollars
1992-01-01	3367673
1997-01-01	5983343
2002-01-01	8045165
2003-01-01	7095705
2004-01-01	8676592
2005-01-01	6731622
2006-01-01	11185174
2007-01-01	10420256
2008-01-01	14440383
2009-01-01	14271174
2010-01-01	16067313
2011-01-01	20117400
2012-01-01	20047860
2013-01-01	20773024
2014-01-01	22232540
2015-01-01	20758014
2016-01-01	19798504