Year Dollars 1992-01-01 30773247 1997-01-01 56478492 2002-01-01 26984548 2003-01-01 44177405 2004-01-01 36431674 2005-01-01 52345777 2006-01-01 43907365 2007-01-01 53420263 2008-01-01 51836629 2009-01-01 61242286 2010-01-01 51593928 2011-01-01 62163971 2012-01-01 71066195 2013-01-01 99359783 2014-01-01 70318068 2015-01-01 63996515 2016-01-01 96245049