Year Dollars 1992-01-01 161961879 1997-01-01 311516764 2002-01-01 372120775 2003-01-01 515501933 2004-01-01 700328228 2005-01-01 880180596 2006-01-01 1028608053 2007-01-01 1527903461 2008-01-01 1743084566 2009-01-01 1771969911 2010-01-01 1884871956 2011-01-01 2280324923 2012-01-01 1927788233 2013-01-01 1877378223 2014-01-01 1888406272 2015-01-01 1636258970 2016-01-01 1944810367