Year Dollars 1992-01-01 35461541 1997-01-01 102033127 2002-01-01 106286722 2003-01-01 84763705 2004-01-01 74095138 2005-01-01 82974668 2006-01-01 94856734 2007-01-01 134671044 2008-01-01 155618746 2009-01-01 188411737 2010-01-01 131489580 2011-01-01 128039604 2012-01-01 151783803 2013-01-01 254614578 2014-01-01 252044360 2015-01-01 374819884 2016-01-01 445556293