Year	Dollars
1992-01-01	2647930
1997-01-01	11824543
2002-01-01	48291396
2003-01-01	65945991
2004-01-01	94275940
2005-01-01	83788945
2006-01-01	56202728
2007-01-01	91580981
2008-01-01	66692399
2009-01-01	76485470
2010-01-01	130429199
2011-01-01	134967551
2012-01-01	225347195
2013-01-01	152012739
2014-01-01	178974818
2015-01-01	185564700
2016-01-01	119010090