Year Dollars 1997-01-01 158541 2003-01-01 188228 2006-01-01 47900 2007-01-01 332837 2008-01-01 105338 2010-01-01 181098 2011-01-01 376394 2012-01-01 467559 2013-01-01 202976 2014-01-01 693749 2016-01-01 119351