Year Dollars 1992-01-01 20793119 1997-01-01 57434729 2002-01-01 41238787 2003-01-01 37804930 2004-01-01 96863166 2005-01-01 208225489 2006-01-01 204174983 2007-01-01 205484009 2008-01-01 246280920 2009-01-01 177327202 2010-01-01 100576705 2011-01-01 156216812 2012-01-01 123452901 2013-01-01 156414437 2014-01-01 166902590 2015-01-01 305946905 2016-01-01 172175018