Year Dollars 1997-01-01 1399345 2002-01-01 275310 2006-01-01 1045499 2009-01-01 46490 2010-01-01 832332 2011-01-01 535840 2012-01-01 429224 2013-01-01 367629 2014-01-01 1385187 2015-01-01 2139699