Year	Dollars
1992-01-01	1321465
1997-01-01	657938
2002-01-01	2554396
2003-01-01	7356872
2004-01-01	10895067
2005-01-01	2641730
2006-01-01	12071993
2007-01-01	5799906
2008-01-01	9741574
2009-01-01	23692122
2010-01-01	17769068
2011-01-01	31375181
2012-01-01	28061670
2013-01-01	22710391
2014-01-01	17584520
2015-01-01	9163298
2016-01-01	6347187