Year Dollars 1992-01-01 308180 1997-01-01 931172 2002-01-01 524644 2003-01-01 1023065 2004-01-01 1799852 2005-01-01 2189158 2006-01-01 2498521 2007-01-01 2620081 2008-01-01 3086364 2009-01-01 6709697 2010-01-01 6162251 2011-01-01 5891917 2012-01-01 5203333 2013-01-01 3710687 2014-01-01 3205235 2015-01-01 2478283 2016-01-01 3441242