Year Dollars 1992-01-01 174741 1997-01-01 455905 2002-01-01 469450 2003-01-01 541930 2004-01-01 853640 2005-01-01 1064642 2006-01-01 419940 2007-01-01 690361 2008-01-01 416592 2009-01-01 425631 2010-01-01 664073 2011-01-01 1511480 2012-01-01 1420482 2013-01-01 2047844 2014-01-01 991646 2015-01-01 2774347 2016-01-01 3873274