Year	Dollars
1992-01-01	3276716
1997-01-01	8164321
2002-01-01	16637332
2003-01-01	12099506
2004-01-01	13235537
2005-01-01	21478093
2006-01-01	16516719
2007-01-01	17447037
2008-01-01	26477151
2009-01-01	27164794
2010-01-01	30929601
2011-01-01	35621677
2012-01-01	25188690
2013-01-01	23531241
2014-01-01	30046680
2015-01-01	33810524
2016-01-01	20903111