Year	Dollars
1992-01-01	4441160
1997-01-01	12199761
2002-01-01	27919061
2003-01-01	38838506
2004-01-01	34908380
2005-01-01	48211377
2006-01-01	81182647
2007-01-01	52278327
2008-01-01	126328408
2009-01-01	101672913
2010-01-01	98326397
2011-01-01	102511884
2012-01-01	130394837
2013-01-01	183103296
2014-01-01	181865541
2015-01-01	193596960
2016-01-01	152781882