Year Dollars 1992-01-01 12259883 1997-01-01 33574309 2002-01-01 66992324 2003-01-01 74005743 2004-01-01 75154295 2005-01-01 65806906 2006-01-01 97990102 2007-01-01 145961326 2008-01-01 188392514 2009-01-01 193374414 2010-01-01 289430323 2011-01-01 313240563 2012-01-01 262546837 2013-01-01 277251275 2014-01-01 336382175 2015-01-01 244185191 2016-01-01 207528784