Year Dollars 1992-01-01 1121999 1997-01-01 1302116 2002-01-01 4411323 2003-01-01 4154890 2004-01-01 10571850 2005-01-01 16683248 2006-01-01 11894146 2007-01-01 18339498 2008-01-01 4228605 2009-01-01 3637617 2010-01-01 3019297 2011-01-01 5472545 2012-01-01 6125061 2013-01-01 3889555 2014-01-01 7221571 2015-01-01 3719172 2016-01-01 6011763