Year Dollars 1992-01-01 1616497 1997-01-01 1375376 2002-01-01 1784102 2003-01-01 1336516 2004-01-01 985860 2005-01-01 538328 2006-01-01 895821 2007-01-01 763090 2008-01-01 1064595 2009-01-01 849253 2010-01-01 379942 2011-01-01 3240030 2012-01-01 7724063 2013-01-01 59956999 2014-01-01 11033560 2015-01-01 15755219 2016-01-01 16145640