Year Dollars 1992-01-01 1464356 1997-01-01 5319357 2002-01-01 2842067 2003-01-01 2905748 2004-01-01 4427038 2005-01-01 4084693 2006-01-01 4124245 2007-01-01 3402948 2008-01-01 4213299 2009-01-01 5419282 2010-01-01 8124560 2011-01-01 9785063 2012-01-01 10401854 2013-01-01 10416667 2014-01-01 13805616 2015-01-01 21233739 2016-01-01 14569713