Year	National currency, Monthly Level
1960-01-01	18201834.302779898
1961-01-01	19221243.686161503
1962-01-01	22047084.204931002
1963-01-01	25372393.644886800
1964-01-01	26295699.843996200
1965-01-01	29273535.822490600
1966-01-01	35875000.997489400
1967-01-01	43100050.204604500
1968-01-01	41055541.437691800
1969-01-01	47777022.767121000
1970-01-01	56915354.642575800
1971-01-01	57484872.980750900
1972-01-01	76386180.045137600
1973-01-01	121012148.509264000
1974-01-01	178863000.826644000
1975-01-01	215642077.811649020
1976-01-01	272824961.714104000
1977-01-01	296990341.532089000
1978-01-01	362528694.904593000
1979-01-01	421168410.296415000
1980-01-01	644059428.937727100
1981-01-01	697407847.701446000
1982-01-01	852994103.412940000
1983-01-01	1135974751.152550000
1984-01-01	1588254255.943359900
1985-01-01	1835718048.296739800
1986-01-01	2307236236.200650000
1987-01-01	2722569225.767920000
1988-01-01	2211993649.395210300
1989-01-01	3551791054.952600000
1990-01-01	3779990814.789119700
1991-01-01	4634952234.777810000
1992-01-01	5447825462.811320000
1993-01-01	7141500000.000000000
1994-01-01	7876200000.000000000
1995-01-01	8455399999.999999000
1996-01-01	9193200000.000000000
1997-01-01	10041200000.000000000
1998-01-01	9725000000.000000000
1999-01-01	10352500000.000000000
2000-01-01	12694500000.000000000
2001-01-01	12748300000.000000000
2002-01-01	12115300000.000000000
2003-01-01	12509300000.000000000
2004-01-01	13261900000.000000000
2005-01-01	14778100000.000000000
2006-01-01	17123700000.000000000
2007-01-01	19285000000.000000000
2008-01-01	21190400000.000000000
2009-01-01	17987900000.000000000
2010-01-01	21162200000.000000000
2011-01-01	24282600000.000000000
2012-01-01	27589700000.000000000
2013-01-01	27381300000.000000000
2014-01-01	27195600000.000000000
2015-01-01	25936000000.000000000
2016-01-01	25435500000.000000000
2017-01-01	28880200000.000000000