Year Dollars 1997-01-01 2352739 2002-01-01 2857128 2003-01-01 2335120 2004-01-01 4364971 2005-01-01 4359579 2006-01-01 5086131 2007-01-01 9767787 2008-01-01 8878487 2009-01-01 4963906 2010-01-01 5912872 2011-01-01 5986604 2012-01-01 7219610 2013-01-01 7789288 2014-01-01 9574912 2015-01-01 13714202 2016-01-01 6519849