Year	Dollars
1992-01-01	7150002
1997-01-01	18427268
2002-01-01	7084145
2003-01-01	10066887
2004-01-01	11319957
2005-01-01	14816293
2006-01-01	16556035
2007-01-01	13491040
2008-01-01	23472711
2009-01-01	24810463
2010-01-01	49960421
2011-01-01	95550396
2012-01-01	123338685
2013-01-01	78732910
2014-01-01	88892778
2015-01-01	65115987
2016-01-01	46877073