Year National Currency 1976-01-01 5047303110.88621 1977-01-01 5285482577.60395 1978-01-01 5869547666.94488 1979-01-01 6342403961.16392 1980-01-01 6378306014.00806 1981-01-01 6570951170.91212 1982-01-01 6516660261.30602 1983-01-01 6956241484.72022 1984-01-01 7618240295.75122 1985-01-01 7655893667.32792 1986-01-01 7733827389.01799 1987-01-01 8377437345.91402 1988-01-01 9185671345.10693 1989-01-01 10088476603.14370 1990-01-01 11102490656.30230 1991-01-01 10700562807.09170 1992-01-01 11421230824.99810 1993-01-01 11614751641.70620 1994-01-01 12665543406.63740 1995-01-01 14851190277.69430 1996-01-01 15987796704.30390 1997-01-01 18695336817.73430 1998-01-01 21768902730.15810 1999-01-01 25012346644.57910 2000-01-01 27300277766.20000 2001-01-01 29042076795.30000 2002-01-01 32158193677.20000 2003-01-01 32127262172.00000 2004-01-01 32700830940.50000 2005-01-01 33265166074.90000 2006-01-01 34380594284.20000 2007-01-01 37962280077.90000 2008-01-01 37599124834.90000 2009-01-01 37777005564.10000 2010-01-01 40331813829.20000