Year Dollars 1992-01-01 488289 1997-01-01 835059 2002-01-01 553873 2003-01-01 480272 2004-01-01 564755 2005-01-01 747531 2006-01-01 900040 2007-01-01 582840 2008-01-01 1581656 2009-01-01 4551532 2010-01-01 836605 2011-01-01 1514395 2012-01-01 938341 2013-01-01 1139843 2014-01-01 1517094 2015-01-01 792039 2016-01-01 1236359