Year Dollars 1992-01-01 152604597 1997-01-01 205467659 2002-01-01 290879732 2003-01-01 318961769 2004-01-01 154755443 2005-01-01 150474353 2006-01-01 165508242 2007-01-01 225008049 2008-01-01 197041323 2009-01-01 159928210 2010-01-01 224742207 2011-01-01 263711707 2012-01-01 221459100 2013-01-01 203811600 2014-01-01 233136747 2015-01-01 206251540 2016-01-01 217577419