Year Dollars 1992-01-01 1599821 1997-01-01 2411300 2002-01-01 2190136 2003-01-01 5973676 2004-01-01 4423781 2005-01-01 3188896 2006-01-01 3514450 2007-01-01 5587463 2008-01-01 10423874 2009-01-01 11018053 2010-01-01 13986998 2011-01-01 10865326 2012-01-01 13551222 2013-01-01 15468047 2014-01-01 16198835 2015-01-01 13210726 2016-01-01 10674156