Year	Dollars
1992-01-01	1833207
1997-01-01	5785491
2002-01-01	19209570
2003-01-01	22640752
2004-01-01	13643007
2005-01-01	15686256
2006-01-01	14691756
2008-01-01	23977659
2009-01-01	21918011
2010-01-01	23854819
2011-01-01	36524566
2012-01-01	37091099
2013-01-01	42813360
2015-01-01	35139995
2016-01-01	49652846