Year Dollars 1992-01-01 1290511 1997-01-01 7016033 2002-01-01 11861898 2003-01-01 11592447 2004-01-01 18330302 2005-01-01 32426781 2007-01-01 36151956 2008-01-01 48009990 2009-01-01 44327379 2011-01-01 38382600 2012-01-01 60496215 2013-01-01 61825243 2014-01-01 74040675 2015-01-01 102756916 2016-01-01 86160637