Year Dollars 1997-01-01 139772 2002-01-01 502890 2003-01-01 1026888 2004-01-01 774250 2005-01-01 883613 2006-01-01 692461 2007-01-01 981211 2008-01-01 921404 2009-01-01 979342 2010-01-01 737630 2011-01-01 1000444 2012-01-01 2039481 2013-01-01 2830654 2014-01-01 3576902 2015-01-01 12736885 2016-01-01 4393833