Year	National currency, Sum Over Component Sub-periods
1980-01-01	180000000
1981-01-01	311000000
1982-01-01	262000000
1983-01-01	147000000
1984-01-01	233000000
1985-01-01	203000000
1986-01-01	108000000
1987-01-01	160000000
1988-01-01	226000000
1989-01-01	256000000
1990-01-01	248000000
1991-01-01	337000000
1992-01-01	429000000
1993-01-01	791000000
1994-01-01	922000000
1995-01-01	1003000000
1996-01-01	910000000
1997-01-01	1106000000
1998-01-01	1365000000
1999-01-01	2392000000
2000-01-01	3038000000
2001-01-01	2101000000
2002-01-01	1627000000
2003-01-01	2581000000
2004-01-01	2811000000
2005-01-01	3274000000
2006-01-01	3529000000
2007-01-01	4558000000
2008-01-01	5573000000
2009-01-01	4283000000
2010-01-01	4009000000
2011-01-01	3322000000
2012-01-01	3832000000
2013-01-01	3542000000