Year Dollars 1992-01-01 2006652 1997-01-01 632062 2002-01-01 1279325 2003-01-01 982708 2004-01-01 1463791 2005-01-01 968830 2006-01-01 1677244 2007-01-01 2427521 2008-01-01 2748716 2009-01-01 2319460 2010-01-01 3536414 2011-01-01 3222744 2012-01-01 2565096 2013-01-01 1989275 2014-01-01 2867327 2015-01-01 2903174 2016-01-01 2293578