Year Dollars 1992-01-01 1305010 1997-01-01 1030043 2002-01-01 9108992 2003-01-01 13389406 2004-01-01 7151077 2005-01-01 23911449 2006-01-01 12933984 2007-01-01 17933288 2008-01-01 14031967 2009-01-01 20457349 2010-01-01 12242946 2011-01-01 14224439 2012-01-01 12526828 2013-01-01 20574829 2014-01-01 21237870 2015-01-01 8794774 2016-01-01 19026810