Year Dollars 1992-01-01 3997409 1997-01-01 526398 2002-01-01 725118 2003-01-01 1906331 2004-01-01 1544356 2005-01-01 3008881 2006-01-01 5725529 2007-01-01 4032250 2008-01-01 4213454 2009-01-01 6700079 2010-01-01 14760111 2012-01-01 4198239 2013-01-01 2936320 2014-01-01 8811079 2015-01-01 4789027 2016-01-01 5397486