Year Dollars 1992-01-01 10791041 1997-01-01 10728704 2002-01-01 24548637 2003-01-01 44597918 2004-01-01 29819519 2005-01-01 26055592 2006-01-01 26907533 2007-01-01 42266334 2008-01-01 51861419 2009-01-01 34716596 2010-01-01 36959994 2011-01-01 39622465 2012-01-01 44129755 2013-01-01 49162037 2014-01-01 64522733 2015-01-01 63836556 2016-01-01 67144496