Year Dollars 1992-01-01 753600 1997-01-01 1539383 2002-01-01 11520457 2003-01-01 3623830 2004-01-01 5827490 2005-01-01 4708552 2006-01-01 5920180 2007-01-01 10260640 2008-01-01 28904393 2009-01-01 26705268 2010-01-01 16748239 2011-01-01 39922816 2012-01-01 57756046 2013-01-01 66191506 2014-01-01 62534319 2015-01-01 59000320 2016-01-01 62806627