Year Dollars 1992-01-01 1242399 1997-01-01 172869 2002-01-01 1645045 2003-01-01 2702166 2004-01-01 8695675 2005-01-01 6453603 2006-01-01 8006794 2007-01-01 14990951 2008-01-01 10772351 2009-01-01 4311728 2010-01-01 5646625 2011-01-01 10989669 2012-01-01 10273285 2013-01-01 6172544 2014-01-01 8140234 2015-01-01 4736744 2016-01-01 2397958