Year Dollars 1992-01-01 160430 1997-01-01 1103014 2002-01-01 1245776 2003-01-01 1876153 2004-01-01 1770411 2005-01-01 4232301 2006-01-01 2745360 2007-01-01 5119198 2008-01-01 6162913 2009-01-01 4171517 2010-01-01 5068185 2011-01-01 5135331 2012-01-01 4258546 2013-01-01 4343314 2014-01-01 3976509 2015-01-01 4398332 2016-01-01 2120634