Year Dollars 1992-01-01 13334 1997-01-01 347718 2002-01-01 4712984 2003-01-01 2225974 2004-01-01 2336151 2008-01-01 8609090 2009-01-01 9322089 2010-01-01 9322787 2012-01-01 11352130 2013-01-01 13364067 2014-01-01 16196835 2015-01-01 16364016 2016-01-01 11994939