Year Dollars 1992-01-01 1271003 1997-01-01 3987479 2002-01-01 2365938 2003-01-01 2107134 2004-01-01 2253858 2005-01-01 4053945 2006-01-01 2380121 2007-01-01 4721420 2009-01-01 2153119 2012-01-01 2361436 2013-01-01 1511668 2014-01-01 3558681 2015-01-01 1966298 2016-01-01 4157234