Year Dollars 1992-01-01 17664 1997-01-01 36673 2004-01-01 509039 2005-01-01 994380 2006-01-01 1242843 2007-01-01 699994 2008-01-01 801120 2009-01-01 399660 2010-01-01 651823 2011-01-01 1297463 2012-01-01 1020691 2013-01-01 664153 2014-01-01 1021900 2015-01-01 385920