Year Dollars 1992-01-01 5217368 1997-01-01 2583799 2002-01-01 11538511 2003-01-01 16551826 2004-01-01 30690123 2005-01-01 25498226 2006-01-01 46577851 2007-01-01 21846194 2008-01-01 49457747 2009-01-01 97124660 2010-01-01 79700508 2011-01-01 67207642 2012-01-01 98145411 2013-01-01 97912634 2014-01-01 69916128 2015-01-01 60744048 2016-01-01 42859591