Year	Dollars
1992-01-01	21669276
1997-01-01	41517788
2002-01-01	44733218
2003-01-01	22184128
2004-01-01	40238259
2005-01-01	33823829
2006-01-01	70384346
2007-01-01	95347950
2008-01-01	167558000
2009-01-01	100685848
2010-01-01	124374677
2011-01-01	97355554
2012-01-01	143025872
2013-01-01	180454064
2014-01-01	178792346
2015-01-01	163028508
2016-01-01	178564625