Year Dollars 1992-01-01 8512722 1997-01-01 25065911 2002-01-01 20994164 2003-01-01 16573929 2004-01-01 44520905 2005-01-01 20536899 2006-01-01 18342394 2007-01-01 38936926 2008-01-01 77310791 2009-01-01 43897939 2010-01-01 72240321 2011-01-01 57202403 2012-01-01 40496863 2013-01-01 56308367 2014-01-01 50598880 2015-01-01 50901141 2016-01-01 32113743