Year	National currency, Sum Over Component Sub-periods
1975-01-01	144000000
1976-01-01	134000000
1977-01-01	153000000
1978-01-01	480000000
1979-01-01	98000000
1980-01-01	19000000
1981-01-01	244000000
1982-01-01	418000000
1983-01-01	310000000
1984-01-01	1287000000
1985-01-01	1418000000
1986-01-01	1256000000
1987-01-01	1189000000
1988-01-01	2137000000
1989-01-01	2663000000
1990-01-01	3362000000
1991-01-01	5577000000
1992-01-01	5853000000
1993-01-01	5912000000
1994-01-01	6384000000
1995-01-01	-1143000000
1996-01-01	-2333000000
1997-01-01	-672000000
1998-01-01	-159000000
1999-01-01	-1826000000
2000-01-01	-1827000000
2001-01-01	-6243000000
2002-01-01	-4612000000
2003-01-01	-1983000000
2004-01-01	-9374000000
2005-01-01	-5504000000
2006-01-01	-7253000000
2007-01-01	-3915000000
2008-01-01	5283000000
2009-01-01	-5952000000
2010-01-01	-7609000000
2011-01-01	9225000000