Year Dollars 1992-01-01 106921427 1997-01-01 152592268 2002-01-01 225102095 2003-01-01 226770812 2004-01-01 303600111 2005-01-01 388903860 2006-01-01 434413456 2007-01-01 455026918 2008-01-01 460173587 2009-01-01 401187678 2010-01-01 546045876 2011-01-01 622253480 2012-01-01 564678579 2013-01-01 660757116 2014-01-01 721530927 2015-01-01 746733914 2016-01-01 736471389