Year Dollars 1992-01-01 8213814 1997-01-01 11598215 2002-01-01 25061286 2003-01-01 20013526 2004-01-01 20206274 2005-01-01 20317031 2006-01-01 28020185 2007-01-01 30234827 2008-01-01 67589247 2009-01-01 38515149 2010-01-01 65924406 2011-01-01 110253499 2012-01-01 64829290 2013-01-01 99267683 2014-01-01 71945711 2015-01-01 46433596 2016-01-01 30259559