Year Dollars 1992-01-01 206537677 1997-01-01 276377111 2002-01-01 274750823 2003-01-01 296631860 2004-01-01 292203362 2005-01-01 265562876 2006-01-01 383928093 2007-01-01 429698787 2008-01-01 465857374 2009-01-01 395699391 2010-01-01 464885857 2011-01-01 515149417 2012-01-01 439466841 2013-01-01 344584921 2014-01-01 394897331 2015-01-01 427089862 2016-01-01 414944975