Year Dollars 2005-01-01 23158 2008-01-01 322767 2009-01-01 183869 2010-01-01 1251061 2011-01-01 1255261 2012-01-01 135275 2013-01-01 148133 2014-01-01 600695 2015-01-01 462716 2016-01-01 607293