Year	National currency, Sum Over Component Sub-periods
1987-01-01	4476000000
1988-01-01	4095000000
1989-01-01	4068000000
1990-01-01	4453000000
1991-01-01	5182000000
1992-01-01	4839000000
1993-01-01	6016000000
1994-01-01	7014000000
1995-01-01	8323000000
1996-01-01	8608000000
1997-01-01	9077000000
1998-01-01	7782000000
1999-01-01	9101000000
2000-01-01	10376000000
2001-01-01	10011000000
2002-01-01	11174000000
2003-01-01	11330000000
2004-01-01	12894000000
2005-01-01	14776000000
2006-01-01	16913000000
2007-01-01	19300000000
2008-01-01	19610000000
2009-01-01	13686000000
2010-01-01	14711000000
2011-01-01	15789000000
2012-01-01	15606000000
2013-01-01	15851000000