Year Current U.S. Dollars 1989-01-01 3428.76201759713 1990-01-01 3485.11220224670 1991-01-01 3485.05600012759 1992-01-01 3095.65977914120 1993-01-01 2929.46211857553 1994-01-01 2663.39459907550 1995-01-01 2665.73972189559 1996-01-01 2643.89769649787 1997-01-01 2737.55666234068 1998-01-01 1834.84693733287 1999-01-01 1330.75146395036 2000-01-01 1771.58660190996 2001-01-01 2100.36238594042 2002-01-01 2375.05904394498 2003-01-01 2975.13277834925 2004-01-01 4102.37229354879 2005-01-01 5323.47387655593 2006-01-01 6920.19439783608 2007-01-01 9101.25308480437 2008-01-01 11635.26037297000 2009-01-01 8562.80959842398 2010-01-01 10674.98770736500 2011-01-01 14351.21205377530 2012-01-01 15434.57478071260 2013-01-01 16007.08999344440 2014-01-01 14125.90872742720 2015-01-01 9329.29071323649 2016-01-01 8748.36885284202 2017-01-01 10743.09659154630