Year Dollars 1992-01-01 149911261 1997-01-01 223722486 2002-01-01 181305102 2003-01-01 215788473 2004-01-01 221399194 2005-01-01 261597459 2006-01-01 287580040 2007-01-01 307128023 2008-01-01 305792992 2009-01-01 251672436 2010-01-01 286108637 2011-01-01 287021317 2012-01-01 296856429 2013-01-01 351411949 2014-01-01 325197209 2015-01-01 314711086 2016-01-01 265569072