Year Dollars 1992-01-01 13934874 1997-01-01 23158538 2002-01-01 49881743 2003-01-01 46889472 2004-01-01 43997437 2005-01-01 44311337 2006-01-01 55678918 2007-01-01 67977276 2008-01-01 87403857 2009-01-01 87424202 2010-01-01 55326956 2011-01-01 92474234 2012-01-01 59093303 2013-01-01 71206690 2014-01-01 98213314 2015-01-01 56368914 2016-01-01 67273830