Year	National currency, Monthly Level
1970-01-01	15281184589.843500
1971-01-01	17572188420.887302
1972-01-01	20454084642.743400
1973-01-01	24767934483.510400
1974-01-01	34012595337.804200
1975-01-01	34621629161.667600
1976-01-01	41650900897.467400
1977-01-01	48751061426.282490
1978-01-01	54487108148.857300
1979-01-01	65207932837.061000
1980-01-01	74791640305.690810
1981-01-01	87900731297.935700
1982-01-01	96466384229.454100
1983-01-01	110140603728.597990
1984-01-01	129579987712.609010
1985-01-01	138139542683.438020
1986-01-01	131641098425.659010
1987-01-01	135515742647.765000
1988-01-01	149519556922.176000
1989-01-01	171332114757.522000
1990-01-01	175958485083.625980
1991-01-01	182325365839.529020
1992-01-01	185670000000.000000
1993-01-01	187648000000.000000
1994-01-01	209871400000.000000
1995-01-01	231158900000.000000
1996-01-01	239805400000.000000
1997-01-01	267668500000.000000
1998-01-01	286295100000.000000
1999-01-01	303004800000.000000
2000-01-01	355407600000.000000
2001-01-01	361382100000.000000
2002-01-01	351914100000.000000
2003-01-01	347297900000.000000
2004-01-01	360254700000.000000
2005-01-01	371184600000.000000
2006-01-01	395578700000.000000
2007-01-01	408781800000.000000
2008-01-01	417565600000.000000
2009-01-01	348097500000.000000
2010-01-01	392597500000.000000
2011-01-01	427517600000.000000
2012-01-01	442735100000.000000
2013-01-01	438529100000.000000
2014-01-01	438785000000.000000
2015-01-01	456077400000.000000
2016-01-01	452271600000.000000
2017-01-01	474613200000.000000