Year Dollars 1992-01-01 49447 1997-01-01 692303 2003-01-01 534568 2004-01-01 1342390 2005-01-01 1791759 2006-01-01 5754683 2007-01-01 3168267 2008-01-01 11456502 2009-01-01 13562421 2010-01-01 15130609 2012-01-01 17808109 2013-01-01 6586335 2014-01-01 11878491 2015-01-01 19580634 2016-01-01 5664164