Year Dollars 1997-01-01 1421119 2002-01-01 1540959 2003-01-01 1198213 2004-01-01 1215191 2005-01-01 2541988 2006-01-01 8731615 2013-01-01 4379633 2014-01-01 23136647 2015-01-01 9913347 2016-01-01 6754655