Year Dollars 1992-01-01 850541 1997-01-01 7634659 2002-01-01 5280337 2004-01-01 1429405 2005-01-01 1446689 2006-01-01 1262834 2007-01-01 4393781 2008-01-01 9717351 2009-01-01 20220180 2010-01-01 15146271 2011-01-01 8907228 2012-01-01 15341223 2013-01-01 7631535 2014-01-01 12582830 2015-01-01 6301706 2016-01-01 7648199