Year	National currency, Sum Over Component Sub-periods
1988-01-01	6959000000
1989-01-01	7943000000
1990-01-01	7775000000
1991-01-01	8796000000
1992-01-01	9023000000
1993-01-01	10497000000
1994-01-01	7760000000
1995-01-01	7826000000
1996-01-01	8705000000
1997-01-01	11226000000
1998-01-01	11145000000
1999-01-01	15581000000
2000-01-01	16964000000
2001-01-01	17936000000
2002-01-01	22162000000
2003-01-01	18418000000
2004-01-01	17549000000
2005-01-01	18724000000
2006-01-01	17780000000
2007-01-01	19507000000
2008-01-01	20800000000
2009-01-01	22071000000
2010-01-01	17806000000
2011-01-01	19988000000
2012-01-01	19684000000
2013-01-01	19926000000