Year Dollars 1992-01-01 427664 1997-01-01 1499387 2002-01-01 1800723 2003-01-01 1357267 2004-01-01 1448060 2005-01-01 1170700 2006-01-01 1442805 2007-01-01 1901932 2008-01-01 1779751 2009-01-01 2289562 2010-01-01 3436348 2011-01-01 2343290 2012-01-01 3250333 2013-01-01 2142979 2014-01-01 3459490 2015-01-01 3347481 2016-01-01 2833236