Year Dollars 1992-01-01 655642 1997-01-01 3321881 2002-01-01 1872049 2003-01-01 4663481 2004-01-01 1267214 2005-01-01 1605985 2006-01-01 3353790 2007-01-01 5031967 2008-01-01 4642022 2009-01-01 4122074 2010-01-01 4605292 2011-01-01 7852343 2012-01-01 10187598 2013-01-01 9974753 2014-01-01 10320383 2015-01-01 13037732 2016-01-01 10686013