Year	National Currency
1970-01-01	182400000000
1971-01-01	203500000000
1972-01-01	232700000000
1973-01-01	248900000000
1974-01-01	271400000000
1975-01-01	308900000000
1976-01-01	330200000000
1977-01-01	371300000000
1978-01-01	418000000000
1979-01-01	458500000000
1980-01-01	492650000000
1981-01-01	519135000000
1982-01-01	570578000000
1983-01-01	628682000000
1984-01-01	682436000000
1985-01-01	732832000000
1986-01-01	795950000000
1987-01-01	853378000000
1988-01-01	925626000000
1989-01-01	1015225000000
1990-01-01	1128463000000
1991-01-01	1171457000000
1992-01-01	1215275000000
1993-01-01	1287860000000
1994-01-01	1343081000000
1995-01-01	1423101000000
1996-01-01	1528487000000
1997-01-01	1626864000000
1998-01-01	1785398000000
1999-01-01	1972045000000
2000-01-01	2084600000000
2001-01-01	2278976000000
2002-01-01	2499429000000
2003-01-01	2727088000000
2004-01-01	2948883000000
2005-01-01	3482137000000
2006-01-01	3758611000000
2007-01-01	3901280000000
2008-01-01	4035742000000
2009-01-01	4556171000000
2010-01-01	4754390000000
2011-01-01	4866628000000
2012-01-01	5171550000000