Year Dollars 1992-01-01 42675792 1997-01-01 86506093 2002-01-01 69414619 2003-01-01 60788789 2004-01-01 79516305 2005-01-01 85047937 2006-01-01 96611537 2007-01-01 139839234 2008-01-01 181395076 2009-01-01 131524600 2010-01-01 192699504 2011-01-01 195892639 2012-01-01 197410449 2013-01-01 243686681 2014-01-01 231658583 2015-01-01 228678950 2016-01-01 232081711