Year Current U.S. Dollars 1975-01-01 32506741.7201204 1976-01-01 30036416.9619944 1977-01-01 34139387.8908849 1978-01-01 41567471.6721987 1979-01-01 44667002.0120724 1980-01-01 53260077.4311091 1981-01-01 62242013.3302689 1982-01-01 62068161.0711025 1983-01-01 60863963.9639639 1984-01-01 64248354.5414656 1985-01-01 60058663.3144773 1986-01-01 68195855.6149733 1987-01-01 81667133.4546982 1988-01-01 106657267.3673420 1989-01-01 106344854.9860950 1990-01-01 113563821.5774040 1991-01-01 132201141.4468610 1992-01-01 137066290.5500700 1993-01-01 138489884.3930640 1994-01-01 193775943.0389330 1995-01-01 202547013.9271380 1996-01-01 219583570.0949750 1997-01-01 212155124.6537400 1998-01-01 188686997.3190350 1999-01-01 196686674.6698680 2000-01-01 202363492.1603320 2001-01-01 181244788.4733290 2002-01-01 182737040.0954220 2003-01-01 202543202.0040990 2004-01-01 229358214.7920030 2005-01-01 262176133.7254300 2006-01-01 294137737.0700380 2007-01-01 300143056.8732210 2008-01-01 349484427.6094280 2009-01-01 318166562.7846770 2010-01-01 369485198.8179790 2011-01-01 423011844.3316410 2012-01-01 472358251.2242610 2013-01-01 450686353.6740110 2014-01-01 443911052.2540420 2015-01-01 435438217.2816630 2016-01-01 401562006.2299670 2017-01-01 426057453.0649170