Year Dollars 1992-01-01 35553514 1997-01-01 159319616 2002-01-01 80166404 2003-01-01 80726674 2004-01-01 57266767 2005-01-01 37683641 2006-01-01 48773822 2007-01-01 53161861 2008-01-01 60243980 2009-01-01 118182450 2010-01-01 130915066 2011-01-01 126277410 2012-01-01 166733410 2013-01-01 133105164 2014-01-01 113968820 2015-01-01 99596681 2016-01-01 112069813