Year Dollars 2002-01-01 326934 2003-01-01 1146092 2005-01-01 320243 2006-01-01 318505 2008-01-01 1431129 2010-01-01 1698246 2011-01-01 3355424 2012-01-01 1865856 2013-01-01 1227397 2016-01-01 951151