Year	National Currency
1990-01-01	18003537900000
1991-01-01	18745991300000
1992-01-01	18775111000000
1993-01-01	18895367600000
1994-01-01	19232537700000
1995-01-01	19698740000000
1996-01-01	19339617000000
1997-01-01	19419133500000
1998-01-01	19277259200000
1999-01-01	18616904700000
2000-01-01	18545661400000
2001-01-01	18005035900000
2002-01-01	17602141500000
2003-01-01	16736548500000
2004-01-01	16720259100000
2005-01-01	16827346400000
2006-01-01	16999622200000
2007-01-01	17205871600000
2008-01-01	17106403600000
2009-01-01	16591324500000
2010-01-01	17664137400000