Year Dollars 1992-01-01 196711 1997-01-01 1689411 2002-01-01 7210861 2003-01-01 7018955 2004-01-01 7343723 2005-01-01 7198596 2006-01-01 10830021 2007-01-01 11487874 2009-01-01 11913482 2010-01-01 12607064 2011-01-01 14139051 2012-01-01 12049198 2013-01-01 11189630 2014-01-01 7434108 2015-01-01 9772486 2016-01-01 6579936