Year Dollars 1992-01-01 526608 1997-01-01 1089933 2002-01-01 710517 2003-01-01 2435009 2004-01-01 2808205 2005-01-01 4641239 2006-01-01 4150140 2007-01-01 2541911 2008-01-01 4724367 2009-01-01 3555091 2010-01-01 7009426 2011-01-01 5426954 2012-01-01 5651309 2013-01-01 11311129 2014-01-01 9821540 2015-01-01 15645149 2016-01-01 6839147