Year Dollars 1992-01-01 10196172 1997-01-01 17345207 2002-01-01 2520490 2003-01-01 3631193 2004-01-01 3844838 2005-01-01 3344744 2006-01-01 5100593 2007-01-01 5154420 2008-01-01 4830138 2009-01-01 4467881 2010-01-01 5179779 2011-01-01 14839010 2012-01-01 9965773 2013-01-01 10446742 2014-01-01 12603392 2015-01-01 10357376 2016-01-01 13119312