Year	National Currency
1957-01-01	1074000000
1958-01-01	988000000
1959-01-01	1116000000
1960-01-01	795000000
1961-01-01	1177000000
1962-01-01	1214000000
1963-01-01	1650000000
1964-01-01	1711000000
1965-01-01	1399000000
1966-01-01	1407000000
1967-01-01	1217000000
1968-01-01	1300000000
1969-01-01	1126000000
1970-01-01	1511000000
1971-01-01	2726000000
1972-01-01	4816000000
1973-01-01	4091000000
1974-01-01	3217000000
1975-01-01	2588000000
1976-01-01	3550000000
1977-01-01	2879000000
1978-01-01	3200000000
1979-01-01	4614000000
1980-01-01	5430000000
1981-01-01	4360000000
1982-01-01	10094000000
1983-01-01	13350000000
1984-01-01	12058000000
1985-01-01	12216000000
1986-01-01	15561000000
1987-01-01	17430000000
1988-01-01	19772000000
1989-01-01	21487000000
1990-01-01	24989000000
1991-01-01	25451000000
1992-01-01	20112000000
1993-01-01	20955000000
1994-01-01	18417000000
1995-01-01	20068000000
1996-01-01	21848000000
1997-01-01	26197000000
1998-01-01	25044000000
1999-01-01	33576000000
2000-01-01	33962000000
2001-01-01	36549000000
2002-01-01	38078000000
2003-01-01	44333000000
2004-01-01	47394000000
2005-01-01	58957000000
2006-01-01	69605000000
2007-01-01	30521000000
2008-01-01	47528000000
2009-01-01	46516000000
2010-01-01	41590000000