Year	National currency, Sum Over Component Sub-periods
1987-01-01	4127000000
1988-01-01	4300000000
1989-01-01	4439000000
1990-01-01	4635000000
1991-01-01	4956000000
1992-01-01	5449000000
1993-01-01	5904000000
1994-01-01	6945000000
1995-01-01	7776000000
1996-01-01	7772000000
1997-01-01	7358000000
1998-01-01	7931000000
1999-01-01	9417000000
2000-01-01	11213000000
2001-01-01	12361000000
2002-01-01	13858000000
2003-01-01	13902000000
2004-01-01	14517000000
2005-01-01	14409000000
2006-01-01	14974000000
2007-01-01	15768000000
2008-01-01	16308000000
2009-01-01	16142000000
2010-01-01	15797000000
2011-01-01	16492000000
2012-01-01	16225000000
2013-01-01	16138000000