Year	Dollars
1992-01-01	1220721
1997-01-01	4032305
2002-01-01	7265014
2003-01-01	12482829
2004-01-01	5797971
2005-01-01	5651353
2006-01-01	10940457
2007-01-01	7602909
2008-01-01	18122651
2009-01-01	9996074
2010-01-01	16487216
2011-01-01	9058515
2012-01-01	13674157
2013-01-01	18465943
2014-01-01	32391662
2015-01-01	35246167
2016-01-01	15987824