Year	National currency, Sum Over Component Sub-periods
1988-01-01	17422000000
1989-01-01	17159000000
1990-01-01	18999000000
1991-01-01	21892000000
1992-01-01	21022000000
1993-01-01	22901000000
1994-01-01	21036000000
1995-01-01	22611000000
1996-01-01	21490000000
1997-01-01	23766000000
1998-01-01	27403000000
1999-01-01	28122000000
2000-01-01	26217000000
2001-01-01	30005000000
2002-01-01	32839000000
2003-01-01	29665000000
2004-01-01	28443000000
2005-01-01	20400000000
2006-01-01	21223000000
2007-01-01	21355000000
2008-01-01	23648000000
2009-01-01	24437000000
2010-01-01	21725000000
2011-01-01	23822000000
2012-01-01	23730000000
2013-01-01	28942000000