Year Current U.S. Dollars 1995-01-01 13054.4752482270 1996-01-01 14526.0882087104 1997-01-01 16663.4172826996 1998-01-01 19366.1332088952 1999-01-01 21784.8795982113 2000-01-01 21551.7793590399 2001-01-01 22059.7236162176 2002-01-01 25688.4634010225 2003-01-01 30366.0397509423 2004-01-01 36608.4517732527 2005-01-01 39033.7001150202 2006-01-01 43482.3594306118 2007-01-01 73153.3237531121 2008-01-01 74203.1317645860 2009-01-01 69172.1860433739 2010-01-01 73935.6789952084 2011-01-01 76055.5420958002 2012-01-01 79028.0449845932 2013-01-01 82356.8233665400 2014-01-01 89941.6442851908 2015-01-01 81672.0227049126