Year	National Currency
1989-01-01	12.3450
1990-01-01	13.2750
1991-01-01	13.7450
1992-01-01	14.0025
1993-01-01	14.0775
1994-01-01	14.3575
1995-01-01	14.7125
1996-01-01	15.2425
1997-01-01	15.7700
1998-01-01	16.1750
1999-01-01	16.5325
2000-01-01	16.8300
2001-01-01	17.3850
2002-01-01	17.8050
2003-01-01	18.3575
2004-01-01	18.9575
2005-01-01	19.6175
2006-01-01	20.6300
2007-01-01	21.5300
2008-01-01	22.6150
2009-01-01	23.4275
2010-01-01	23.6525
2011-01-01	24.3525
2012-01-01	25.1000
2013-01-01	25.7375
2014-01-01	26.5050
2015-01-01	27.2200
2016-01-01	27.7475
2017-01-01	28.2825