Year	Dollars
1992-01-01	13926816
1997-01-01	15399741
2002-01-01	21640482
2003-01-01	15802161
2004-01-01	18362395
2005-01-01	23255891
2006-01-01	20312505
2007-01-01	33348068
2008-01-01	31198881
2009-01-01	28139721
2010-01-01	24993970
2011-01-01	28269774
2012-01-01	33335425
2013-01-01	27069549
2014-01-01	25169133
2015-01-01	30034720
2016-01-01	35019757