Year Dollars 1992-01-01 10685085 2002-01-01 30666371 2003-01-01 32608848 2004-01-01 31770783 2005-01-01 29691856 2006-01-01 17942166 2007-01-01 35845984 2008-01-01 21417783 2009-01-01 15408220 2010-01-01 20971938 2011-01-01 33017123 2012-01-01 11494518 2013-01-01 41038134 2014-01-01 41456861 2015-01-01 47781278 2016-01-01 26695840