Year Dollars 1997-01-01 1662031 2003-01-01 396304 2005-01-01 126383 2006-01-01 166268 2007-01-01 157485 2008-01-01 267351 2009-01-01 219462 2010-01-01 1937655 2012-01-01 3319585 2013-01-01 2715089 2014-01-01 1355750 2015-01-01 3383935 2016-01-01 5905532