Year Dollars 1992-01-01 6819534 1997-01-01 38434667 2002-01-01 37929697 2003-01-01 20141356 2004-01-01 24067514 2005-01-01 28714242 2006-01-01 35007212 2007-01-01 36335305 2008-01-01 44998490 2009-01-01 37049597 2010-01-01 69945087 2011-01-01 101454348 2012-01-01 74809516 2013-01-01 84536630 2014-01-01 84914817 2015-01-01 82715316 2016-01-01 55810415