Year Dollars 1992-01-01 1318992 1997-01-01 1536205 2002-01-01 603880 2003-01-01 437450 2004-01-01 458984 2005-01-01 916842 2006-01-01 1644496 2007-01-01 3633520 2008-01-01 5137003 2009-01-01 648263 2010-01-01 753986 2011-01-01 1042027 2012-01-01 1249544 2013-01-01 5327206 2014-01-01 1433131 2015-01-01 2285113 2016-01-01 1718738