Year National currency, Sum Over Component Sub-periods 1980-01-01 2837000000 1981-01-01 3604000000 1982-01-01 3450000000 1983-01-01 3237000000 1984-01-01 3488000000 1985-01-01 3382000000 1986-01-01 3237000000 1987-01-01 3760000000 1988-01-01 4370000000 1989-01-01 4404000000 1990-01-01 5102000000 1991-01-01 5937000000 1992-01-01 6676000000 1993-01-01 7035000000 1994-01-01 7686000000 1995-01-01 7323000000 1996-01-01 7367000000 1997-01-01 8972000000 1998-01-01 10045000000 1999-01-01 15532000000 2000-01-01 21130000000 2001-01-01 22072000000 2002-01-01 20553000000 2003-01-01 21169000000 2004-01-01 27067000000 2005-01-01 27455000000 2006-01-01 28448000000 2007-01-01 30751000000 2008-01-01 33788000000 2009-01-01 27420000000 2010-01-01 28790000000 2011-01-01 28774000000 2012-01-01 27175000000 2013-01-01 27274000000