Year Dollars 1992-01-01 253044 1997-01-01 461909 2003-01-01 226840 2004-01-01 859441 2005-01-01 1397347 2006-01-01 3006050 2007-01-01 5482559 2008-01-01 6238055 2009-01-01 6580582 2010-01-01 1703919 2011-01-01 18141392 2012-01-01 11484663 2013-01-01 3099654 2014-01-01 2421862 2015-01-01 5588376 2016-01-01 918194