Year Dollars 1992-01-01 53215 2002-01-01 118218 2005-01-01 175902 2006-01-01 421523 2007-01-01 506972 2008-01-01 469919 2009-01-01 369334 2010-01-01 480645 2012-01-01 1872623 2013-01-01 1231286 2014-01-01 516371 2015-01-01 1148937 2016-01-01 1508756