Year Current U.S. Dollars 1995-01-01 10690.6652278647 1996-01-01 10801.4284305547 1997-01-01 10447.9357076604 1998-01-01 11165.2763318396 1999-01-01 11441.9970248341 2000-01-01 10227.7367703685 2001-01-01 10479.2963405292 2002-01-01 11814.0999423948 2003-01-01 14880.4715401788 2004-01-01 17260.9015138173 2005-01-01 18169.1809082287 2006-01-01 19726.1264959149 2007-01-01 23841.3179190744 2008-01-01 27501.8102703687 2009-01-01 24633.7978523083 2010-01-01 23437.4720211387 2011-01-01 24985.2482718393 2012-01-01 22532.4356384588 2013-01-01 23357.9391986520 2014-01-01 24202.4308360444 2015-01-01 20873.1611094925 2016-01-01 21650.2127554094 2017-01-01 23597.2917255702