Year Dollars 1992-01-01 2672311 1997-01-01 2717636 2002-01-01 13018522 2003-01-01 5705219 2004-01-01 13359812 2005-01-01 9866513 2006-01-01 15757735 2007-01-01 28525861 2008-01-01 35754054 2009-01-01 29756003 2010-01-01 66519182 2011-01-01 59448391 2012-01-01 51729037 2013-01-01 64204958 2014-01-01 71419112 2015-01-01 70829381 2016-01-01 75064226