Year	Dollars
1992-01-01	30643213
1997-01-01	42872109
2002-01-01	20292925
2003-01-01	24332288
2004-01-01	43265328
2005-01-01	56703697
2006-01-01	97236446
2007-01-01	139116534
2008-01-01	205125244
2009-01-01	141129120
2010-01-01	143461463
2011-01-01	251569920
2012-01-01	309415580
2013-01-01	274491679
2014-01-01	248561099
2015-01-01	186089750
2016-01-01	201848873