Year Dollars 1997-01-01 266843 2002-01-01 447986 2003-01-01 625507 2004-01-01 184594 2005-01-01 1039227 2006-01-01 587474 2007-01-01 1979261 2008-01-01 852422 2009-01-01 635074 2010-01-01 982241 2011-01-01 992158 2012-01-01 4003293 2013-01-01 2085812 2014-01-01 2590962 2015-01-01 1366354 2016-01-01 7285078