Year Dollars 1992-01-01 3395248 1997-01-01 8836052 2002-01-01 3258312 2003-01-01 7321088 2004-01-01 5870541 2005-01-01 7090373 2006-01-01 11983855 2007-01-01 11165402 2008-01-01 11961183 2009-01-01 8302554 2010-01-01 12839534 2011-01-01 7709070 2012-01-01 11588317 2013-01-01 8992802 2014-01-01 8917281 2015-01-01 9151366 2016-01-01 5777263