Year Dollars 1992-01-01 376791 1997-01-01 1669881 2002-01-01 1076882 2003-01-01 1624899 2004-01-01 1960759 2005-01-01 1121350 2006-01-01 2087467 2007-01-01 2094389 2008-01-01 3335455 2009-01-01 4494472 2010-01-01 2937609 2011-01-01 2492492 2012-01-01 3407519 2013-01-01 2525064 2014-01-01 2508718 2015-01-01 4454542 2016-01-01 2930471