Year Dollars 1992-01-01 31632452 1997-01-01 58977628 2002-01-01 38106513 2003-01-01 46298376 2004-01-01 63341041 2005-01-01 86234868 2006-01-01 66542161 2007-01-01 76596410 2008-01-01 153098019 2009-01-01 87990144 2010-01-01 108078231 2011-01-01 159148564 2012-01-01 162931799 2013-01-01 157609419 2014-01-01 126225590 2015-01-01 107478395 2016-01-01 60343096