Year Dollars 1992-01-01 18081440 1997-01-01 25949983 2002-01-01 82236316 2003-01-01 30322686 2004-01-01 37891115 2005-01-01 23114487 2006-01-01 29754629 2007-01-01 37602581 2008-01-01 29806595 2009-01-01 30535626 2010-01-01 31414717 2011-01-01 43525040 2012-01-01 72662950 2013-01-01 123509867 2014-01-01 114497151 2015-01-01 57067978 2016-01-01 58511613