Year Dollars 1992-01-01 1078715 1997-01-01 13084208 2002-01-01 35718365 2003-01-01 40324491 2004-01-01 89354895 2008-01-01 159621897 2009-01-01 37198117 2010-01-01 18239412 2011-01-01 20372843 2012-01-01 13971992 2013-01-01 17367439 2014-01-01 12177477 2015-01-01 15081791 2016-01-01 14861172