Year Dollars 1992-01-01 60303076 1997-01-01 195350845 2002-01-01 131574830 2003-01-01 189296907 2004-01-01 234630366 2005-01-01 268377948 2006-01-01 329491817 2007-01-01 457609962 2008-01-01 661020948 2009-01-01 388885122 2010-01-01 597179952 2011-01-01 639962325 2012-01-01 972209669 2013-01-01 877690203 2014-01-01 715055960 2015-01-01 415176071 2016-01-01 434103571