Year Dollars 1992-01-01 77284552 1997-01-01 131675455 2002-01-01 55672714 2003-01-01 100379785 2004-01-01 155589075 2005-01-01 141752254 2006-01-01 161520454 2007-01-01 164063739 2008-01-01 220375297 2009-01-01 152405260 2010-01-01 225005277 2011-01-01 281288459 2012-01-01 291111674 2013-01-01 226412632 2014-01-01 252102072 2015-01-01 261964838 2016-01-01 332055689