Year Dollars 1992-01-01 194426 1997-01-01 1610798 2002-01-01 345929 2003-01-01 1192083 2004-01-01 965608 2005-01-01 386699 2006-01-01 1758203 2007-01-01 726346 2008-01-01 1439914 2009-01-01 1331944 2010-01-01 2784296 2011-01-01 1933480 2012-01-01 2507233 2013-01-01 2011289 2014-01-01 3058251 2015-01-01 4492093 2016-01-01 2210669