Year Dollars 1992-01-01 49581 1997-01-01 549285 2003-01-01 105268 2004-01-01 72421 2006-01-01 64420 2007-01-01 145839 2008-01-01 358841 2009-01-01 485274 2010-01-01 249178 2011-01-01 191931 2012-01-01 124151 2013-01-01 146374 2015-01-01 321259