Year Dollars 1997-01-01 186367 2004-01-01 91213 2007-01-01 99037 2008-01-01 74874 2009-01-01 775916 2010-01-01 141291 2011-01-01 83013 2012-01-01 91157 2014-01-01 86300 2015-01-01 98840