Year Dollars 1992-01-01 23586179 1997-01-01 58561359 2002-01-01 176746882 2003-01-01 212478548 2004-01-01 250753529 2005-01-01 367051828 2006-01-01 259007126 2007-01-01 325459429 2008-01-01 626467702 2009-01-01 256977259 2010-01-01 329487003 2011-01-01 368740022 2012-01-01 374325974 2013-01-01 357125360 2014-01-01 366453657 2015-01-01 425744095 2016-01-01 390959049