Year Dollars 1997-01-01 4103628 2002-01-01 3254909 2003-01-01 1905962 2004-01-01 2658874 2005-01-01 349522 2007-01-01 780944 2008-01-01 6488669 2009-01-01 655140 2011-01-01 5458659 2012-01-01 891742 2013-01-01 6327454 2015-01-01 9504332 2016-01-01 2161435