Year National currency, Sum Over Component Sub-periods 1990-01-01 4423000000 1991-01-01 4751000000 1992-01-01 4715000000 1993-01-01 4748000000 1994-01-01 4762000000 1995-01-01 4903000000 1996-01-01 5156000000 1997-01-01 5169000000 1998-01-01 5285000000 1999-01-01 5896000000 2000-01-01 5606000000 2001-01-01 6326000000 2002-01-01 6819000000 2003-01-01 7241000000 2004-01-01 8142000000 2005-01-01 10379000000 2006-01-01 11483000000 2007-01-01 11733000000 2008-01-01 11712000000 2009-01-01 12525000000 2010-01-01 12801000000 2011-01-01 12957000000 2012-01-01 13293000000 2013-01-01 13754000000