Year Dollars 1992-01-01 7657836 1997-01-01 9273128 2002-01-01 28669905 2003-01-01 21939522 2004-01-01 28406219 2005-01-01 32796545 2006-01-01 25258775 2007-01-01 23316448 2008-01-01 77191175 2009-01-01 39897949 2010-01-01 65249482 2011-01-01 48840438 2012-01-01 58403832 2013-01-01 46383274 2014-01-01 49500477 2015-01-01 57878045 2016-01-01 45179848