Year Dollars 1992-01-01 2034289 1997-01-01 2257394 2002-01-01 3223524 2003-01-01 2383488 2004-01-01 5362486 2005-01-01 5763928 2006-01-01 10176392 2007-01-01 11597931 2008-01-01 11914304 2009-01-01 11333565 2010-01-01 14742104 2011-01-01 11544494 2012-01-01 25941677 2013-01-01 16617292 2014-01-01 13440495 2015-01-01 11408891 2016-01-01 10613788