Year Current U.S. Dollars 1983-01-01 106500000.00 1986-01-01 112210000.00 1987-01-01 116700000.00 1988-01-01 124700000.00 1989-01-01 135200000.00 1990-01-01 147200000.00 1991-01-01 166200000.00 1992-01-01 178100000.00 1993-01-01 198400000.00 1994-01-01 202500000.00 1995-01-01 222103600.00 1996-01-01 218845700.00 1997-01-01 206900300.00 1998-01-01 219646200.00 1999-01-01 220660500.00 2000-01-01 233226300.00 2001-01-01 240051900.00 2002-01-01 241543400.00 2003-01-01 245277400.00 2004-01-01 240097000.00 2005-01-01 250149400.00 2006-01-01 253372300.00 2007-01-01 256548100.00 2008-01-01 262868600.00 2009-01-01 279966700.00 2010-01-01 296525300.00 2011-01-01 310502100.00 2012-01-01 326128700.00 2013-01-01 316040600.00 2014-01-01 317999400.00 2015-01-01 315179700.00 2016-01-01 329895600.00 2017-01-01 336427532.88