Year Dollars 1992-01-01 314737 1997-01-01 1460663 2002-01-01 405632 2003-01-01 245613 2004-01-01 137273 2005-01-01 412838 2006-01-01 313852 2007-01-01 2877117 2008-01-01 1165695 2009-01-01 737286 2010-01-01 1071969 2011-01-01 7486527 2015-01-01 2925543 2016-01-01 1938198