Year Dollars 1992-01-01 20346330 1997-01-01 19461206 2002-01-01 14050261 2003-01-01 17776656 2004-01-01 8867615 2005-01-01 12190053 2006-01-01 9584593 2007-01-01 11464943 2008-01-01 11289850 2009-01-01 8840102 2010-01-01 29411016 2011-01-01 87871818 2012-01-01 170567986 2013-01-01 64762102 2014-01-01 34757704 2015-01-01 18771110 2016-01-01 44535234