Year	National currency, Sum Over Component Sub-periods
1975-01-01	667000000
1976-01-01	787000000
1977-01-01	952000000
1978-01-01	1246000000
1979-01-01	1420000000
1980-01-01	1655000000
1981-01-01	2045000000
1982-01-01	2126000000
1983-01-01	2279000000
1984-01-01	2324000000
1985-01-01	2395000000
1986-01-01	2186000000
1987-01-01	2405000000
1988-01-01	2597000000
1989-01-01	2826000000
1990-01-01	2895000000
1991-01-01	2791000000
1992-01-01	3496000000
1993-01-01	4239000000
1994-01-01	4790000000
1995-01-01	5439000000
1996-01-01	5507000000
1997-01-01	5805000000
1998-01-01	6015000000
1999-01-01	6128000000
2000-01-01	8340000000
2001-01-01	10280000000
2002-01-01	11054000000
2003-01-01	10149000000
2004-01-01	12212000000
2005-01-01	13666000000
2006-01-01	13832000000
2007-01-01	16847000000
2008-01-01	21692000000
2009-01-01	19967000000
2010-01-01	20388000000
2011-01-01	20924000000
2012-01-01	22742000000
2013-01-01	22913000000