Year Dollars 1992-01-01 14444316 1997-01-01 18126804 2002-01-01 17347448 2003-01-01 21120804 2004-01-01 27121860 2005-01-01 22990874 2006-01-01 18632624 2007-01-01 33209343 2008-01-01 45057389 2009-01-01 24653922 2010-01-01 67695167 2011-01-01 78308926 2012-01-01 63810597 2013-01-01 49500375 2014-01-01 64595013 2015-01-01 60307236 2016-01-01 50576122