Year Dollars 1992-01-01 2196986 1997-01-01 4007025 2002-01-01 4393464 2003-01-01 7584560 2004-01-01 4068684 2005-01-01 7300323 2006-01-01 7311273 2007-01-01 6786389 2008-01-01 9353446 2009-01-01 6863494 2010-01-01 9966646 2011-01-01 8407887 2012-01-01 5188319 2013-01-01 7419034 2014-01-01 5079903 2015-01-01 6592333 2016-01-01 4252511