Year Dollars 1992-01-01 59408477 1997-01-01 292376429 2002-01-01 178407680 2003-01-01 258472160 2004-01-01 182155026 2005-01-01 293240064 2006-01-01 316787286 2007-01-01 999799646 2008-01-01 1184202207 2009-01-01 1215279828 2010-01-01 2035822752 2011-01-01 1586161319 2012-01-01 1607812916 2013-01-01 2150077465 2014-01-01 2113436090 2015-01-01 1751952906 2016-01-01 606167858