Year Dollars 1992-01-01 2653916 1997-01-01 3588556 2002-01-01 12840629 2003-01-01 9104517 2004-01-01 17148528 2005-01-01 14566038 2006-01-01 13871106 2007-01-01 4725323 2008-01-01 19352319 2009-01-01 29788208 2010-01-01 24902627 2011-01-01 19061402 2012-01-01 29875962 2013-01-01 35525735 2014-01-01 38355985 2015-01-01 38880313 2016-01-01 46524186