Year Dollars 1992-01-01 2767124 1997-01-01 3072412 2002-01-01 6247610 2003-01-01 7981966 2004-01-01 10575054 2005-01-01 12451023 2006-01-01 15268606 2007-01-01 18243424 2008-01-01 14593005 2009-01-01 10142517 2010-01-01 9904439 2011-01-01 16780222 2012-01-01 8021996 2013-01-01 7789727 2014-01-01 11074263 2015-01-01 12207414 2016-01-01 10104944