Year Dollars 1992-01-01 5604886 1997-01-01 11513824 2002-01-01 6816480 2003-01-01 9524402 2004-01-01 9670367 2005-01-01 10887124 2006-01-01 16062564 2007-01-01 24688188 2008-01-01 37995744 2009-01-01 24832435 2010-01-01 38462625 2011-01-01 45385829 2012-01-01 48996764 2013-01-01 62373012 2014-01-01 69578853 2015-01-01 50844134 2016-01-01 46466363