Year Dollars 1992-01-01 6316360 2003-01-01 30036939 2004-01-01 63087276 2005-01-01 63161873 2006-01-01 36667952 2007-01-01 51640112 2008-01-01 37320759 2009-01-01 16923645 2010-01-01 19354209 2011-01-01 23033222 2012-01-01 20934751 2013-01-01 22050102 2014-01-01 41348532 2015-01-01 40906601 2016-01-01 30714607