Year Dollars 1992-01-01 503689 1997-01-01 2095876 2002-01-01 3807397 2003-01-01 4011914 2004-01-01 4400535 2005-01-01 3233739 2006-01-01 9457512 2007-01-01 17731353 2008-01-01 17270449 2009-01-01 10470262 2010-01-01 11537244 2011-01-01 13453017 2012-01-01 10928264 2013-01-01 13019266 2014-01-01 18856665 2015-01-01 11520000 2016-01-01 25220167