Year Dollars 2002-01-01 5334856 2004-01-01 6347197 2005-01-01 3556376 2007-01-01 2836112 2008-01-01 2041672 2009-01-01 3823128 2011-01-01 12693633 2012-01-01 14744892 2014-01-01 13472869 2015-01-01 6223955 2016-01-01 4322004