Year Dollars 1997-01-01 142183 2003-01-01 153101 2004-01-01 382167 2005-01-01 1944480 2006-01-01 2992082 2007-01-01 651477 2008-01-01 1370468 2010-01-01 928932 2011-01-01 824875 2012-01-01 482481 2013-01-01 866752 2015-01-01 5544003 2016-01-01 2329330