Year	National Currency
1970-01-01	6483800000000
1971-01-01	6361900000000
1972-01-01	6252599900000
1973-01-01	7723300000000
1974-01-01	8614900000000
1975-01-01	9142399900000
1976-01-01	10027100000000
1977-01-01	12898700000000
1978-01-01	16559800000000
1979-01-01	17351000100000
1980-01-01	16901300000000
1981-01-01	15748599900000
1982-01-01	18335400000000
1983-01-01	22181600000000
1984-01-01	23456000000000
1985-01-01	24824600100000
1986-01-01	25733000100000
1987-01-01	28363100000000
1988-01-01	30750400100000
1989-01-01	34590200000000
1990-01-01	42796900400000
1991-01-01	47856600100000
1992-01-01	47246100800000
1993-01-01	51547999000000
1994-01-01	54058900000000
1995-01-01	57005300000000
1996-01-01	60887200000000
1997-01-01	61695401000000
1998-01-01	54854700000000
1999-01-01	51342900000000
2000-01-01	49073900000000
2001-01-01	51730399800000
2002-01-01	53525500400000
2003-01-01	58245400000000
2004-01-01	59437899000000
2005-01-01	59284500000000
2006-01-01	60564399000000
2007-01-01	62134900000000
2008-01-01	60611100000000
2009-01-01	61716000000000
2010-01-01	61681600000000