Year Dollars 1992-01-01 386809 1997-01-01 3149244 2002-01-01 682449 2003-01-01 1444563 2004-01-01 1437696 2005-01-01 2474673 2006-01-01 2344074 2007-01-01 2675112 2008-01-01 3588462 2009-01-01 4957473 2010-01-01 7673929 2011-01-01 8404834 2012-01-01 10146024 2013-01-01 16204021 2014-01-01 9780353 2015-01-01 13253113 2016-01-01 9305996