Year Dollars 1992-01-01 569512 1997-01-01 3134852 2003-01-01 11943607 2004-01-01 11479126 2005-01-01 5928860 2006-01-01 11553814 2007-01-01 6537827 2008-01-01 5148591 2009-01-01 8580769 2012-01-01 51320738 2013-01-01 3993894 2014-01-01 4786276 2015-01-01 6783312 2016-01-01 4642364