Year	National Currency
1970-01-01	12755213384422.1
1971-01-01	14707780582890.7
1972-01-01	16898936212145.3
1973-01-01	21304632154249.9
1974-01-01	26776109296935.6
1975-01-01	28870277760281.6
1976-01-01	31807911284772.8
1977-01-01	34874645509184.9
1978-01-01	36745312430076.8
1979-01-01	39269241801302.1
1980-01-01	42580706974920.7
1981-01-01	45733975299600.0
1982-01-01	47527699072326.8
1983-01-01	49711742308258.0
1984-01-01	52893136914596.3
1985-01-01	55172335345236.2
1986-01-01	57395927787205.9
1987-01-01	58257497109823.0
1988-01-01	61231231423913.2
1989-01-01	65564294754297.0
1990-01-01	65914524000000.0
1991-01-01	70152925000000.0
1992-01-01	70540265000000.0
1993-01-01	68582293000000.0
1994-01-01	67720894000000.0
1995-01-01	68281813000000.0
1996-01-01	68468992000000.0
1997-01-01	70136723000000.0
1998-01-01	67620290000000.0
1999-01-01	65546133000000.0
2000-01-01	64942854000000.0
2001-01-01	63384221000000.0
2002-01-01	60750694000000.0
2003-01-01	58663602000000.0
2004-01-01	58595785000000.0
2005-01-01	58337757000000.0
2006-01-01	59125098000000.0
2007-01-01	58324449000000.0
2008-01-01	57214152000000.0
2009-01-01	51043521000000.0
2010-01-01	52030806000000.0