Year	National currency, Sum Over Component Sub-periods
1988-01-01	7420000000
1989-01-01	10311000000
1990-01-01	11702000000
1991-01-01	13980000000
1992-01-01	18399000000
1993-01-01	25940000000
1994-01-01	24051000000
1995-01-01	25865000000
1996-01-01	31629000000
1997-01-01	40344000000
1998-01-01	45719000000
1999-01-01	43473000000
2000-01-01	41884000000
2001-01-01	43090000000
2002-01-01	45757000000
2003-01-01	43099000000
2004-01-01	42751000000
2005-01-01	49518000000
2006-01-01	57479000000
2007-01-01	64089000000
2008-01-01	70571000000
2009-01-01	57729000000
2010-01-01	55555000000
2011-01-01	61051000000
2012-01-01	53993000000
2013-01-01	49321000000