Year Dollars 1992-01-01 37018 1997-01-01 127223 2002-01-01 225410 2003-01-01 455705 2004-01-01 501576 2005-01-01 514534 2006-01-01 499127 2007-01-01 1692139 2008-01-01 263492 2009-01-01 411254 2010-01-01 656987 2011-01-01 425736 2012-01-01 318162 2013-01-01 514650 2014-01-01 673469 2015-01-01 900403 2016-01-01 524575