Year	Dollars
1992-01-01	1413580
1997-01-01	1075947
2002-01-01	9246495
2003-01-01	2189484
2004-01-01	4475418
2005-01-01	5099257
2006-01-01	6969408
2007-01-01	4310393
2008-01-01	6657516
2009-01-01	24309559
2010-01-01	6188545
2011-01-01	2522571
2012-01-01	6727129
2013-01-01	2861589
2014-01-01	4736414
2015-01-01	3362834
2016-01-01	4639855