Year Dollars 1992-01-01 1211970 1997-01-01 1207026 2002-01-01 1770668 2003-01-01 2939912 2004-01-01 1693073 2005-01-01 2629571 2006-01-01 2739326 2007-01-01 2864132 2008-01-01 3954911 2009-01-01 3083693 2010-01-01 3559111 2011-01-01 5073109 2012-01-01 4536828 2013-01-01 4149106 2014-01-01 5706839 2015-01-01 4560222 2016-01-01 4871926