Year Dollars 1992-01-01 40882402 1997-01-01 131971865 2002-01-01 167407723 2003-01-01 144396570 2004-01-01 224062449 2005-01-01 158965790 2006-01-01 223265045 2007-01-01 206372626 2008-01-01 237217252 2009-01-01 157349630 2010-01-01 136682796 2011-01-01 188593761 2012-01-01 182125477 2013-01-01 168399904 2014-01-01 172757549 2015-01-01 154988249 2016-01-01 203434386