Year National Currency 1977-01-01 2020134922.2437200 1978-01-01 2229655063.8539600 1979-01-01 2516104142.1942300 1980-01-01 2716416730.7951403 1981-01-01 3153950351.9820504 1982-01-01 3419923637.4235400 1983-01-01 3668027843.6245700 1984-01-01 4062502354.4368706 1985-01-01 4371778616.5203290 1986-01-01 5189086793.1497590 1987-01-01 6421669087.3533800 1988-01-01 7953568777.7588200 1989-01-01 9136335094.1245290 1990-01-01 10020172636.7900000 1991-01-01 9498491238.8705400 1992-01-01 9682424719.3446200 1993-01-01 9940608950.9381800 1994-01-01 10927610794.0434000 1995-01-01 11380323737.4387000 1996-01-01 12095435548.3201000 1997-01-01 12961977295.7015000 1998-01-01 13875858498.0584010 1999-01-01 16553514709.5561000 2000-01-01 17702242160.7791000 2001-01-01 20415704873.1384960 2002-01-01 23103713489.0412030 2003-01-01 25137741528.8612000 2004-01-01 27183775777.1010000 2005-01-01 28672355460.4919000 2006-01-01 30320519998.2966000 2007-01-01 31581198815.2753000 2008-01-01 33052720824.6289000 2009-01-01 34005155254.7242000 2010-01-01 34673600043.5319000 2011-01-01 38143398288.5103000 2012-01-01 40277141820.2038040 2013-01-01 43855333701.6364000 2014-01-01 46996514871.9293000 2015-01-01 50658313675.4779000 2016-01-01 55250772657.9375000 2017-01-01 61151423684.6615000