Year National currency, Monthly Level 1975-01-01 2520166666.6666700 1976-01-01 3085083333.3333297 1977-01-01 3231833333.3333297 1978-01-01 3895000000.0000000 1979-01-01 5261166666.6666700 1980-01-01 7320500000.0000000 1981-01-01 8291166666.6666710 1982-01-01 8812250000.0000000 1983-01-01 10286583333.3333020 1984-01-01 12310416666.6667000 1985-01-01 13283250000.0000000 1986-01-01 10204083333.3333000 1987-01-01 11204583333.3333000 1988-01-01 11705250000.0000000 1989-01-01 15060083333.3333000 1990-01-01 16757500000.0000000 1991-01-01 17189000000.0000000 1992-01-01 17105833333.3333020 1993-01-01 18044416666.6667000 1994-01-01 19591916666.6667020 1995-01-01 21326333333.3332980 1996-01-01 25982166666.6667000 1997-01-01 27740000000.0000000 1998-01-01 24686166666.6667020 1999-01-01 28625250000.0000000 2000-01-01 43501000000.0000000 2001-01-01 43333666666.6667000 2002-01-01 38694833333.3333000 2003-01-01 39175666666.6667000 2004-01-01 45715250000.0000000 2005-01-01 55000250000.0000000 2006-01-01 64631249999.9999900 2007-01-01 65526916666.6666950 2008-01-01 78512916666.6667000 2009-01-01 60081416666.6666950 2010-01-01 65088916666.6667000 2011-01-01 74373250000.0000000 2012-01-01 77463500000.0000000 2013-01-01 75794916666.6666900 2014-01-01 75140250000.0000000 2015-01-01 68860916666.6667000 2016-01-01 61589833333.3333050 2017-01-01 70805416666.6667000