Year Dollars 1992-01-01 154111 1997-01-01 679602 2002-01-01 333326 2003-01-01 1096569 2004-01-01 465284 2005-01-01 1229556 2006-01-01 826352 2007-01-01 1809387 2008-01-01 2162477 2009-01-01 1644054 2010-01-01 2649281 2011-01-01 2637108 2012-01-01 3171558 2013-01-01 4237445 2014-01-01 3570770 2015-01-01 3940052 2016-01-01 2628089