Year Dollars 1992-01-01 16084458 1997-01-01 18957356 2002-01-01 40258507 2003-01-01 47042218 2004-01-01 44208925 2005-01-01 130980666 2006-01-01 91445349 2007-01-01 103756022 2008-01-01 137752112 2009-01-01 126067180 2010-01-01 120832413 2011-01-01 223826252 2012-01-01 248757794 2013-01-01 247711227 2014-01-01 170681596 2015-01-01 137018385 2016-01-01 148251777