Year Dollars 1997-01-01 53220 2003-01-01 171907 2004-01-01 237758 2007-01-01 92667 2009-01-01 352669 2010-01-01 1005724 2012-01-01 479587 2013-01-01 191319 2014-01-01 300889 2015-01-01 386833 2016-01-01 545333