Year Dollars 1992-01-01 3525663 1997-01-01 13697735 2002-01-01 16923137 2003-01-01 22350404 2004-01-01 22305253 2005-01-01 16677387 2006-01-01 29006780 2007-01-01 29219423 2008-01-01 73485909 2009-01-01 115637097 2010-01-01 39221064 2011-01-01 69018352 2012-01-01 49088541 2013-01-01 55396017 2014-01-01 104837087 2015-01-01 77339878 2016-01-01 34488006