Year National currency, Sum Over Component Sub-periods 1995-01-01 2340000000 1996-01-01 2717000000 1997-01-01 3541000000 1998-01-01 3822000000 1999-01-01 5073000000 2000-01-01 7388000000 2001-01-01 7186000000 2002-01-01 8615000000 2003-01-01 8806000000 2004-01-01 10468000000 2005-01-01 13054000000 2006-01-01 16600000000 2007-01-01 19884000000 2008-01-01 19955000000 2009-01-01 17602000000 2010-01-01 19776000000 2011-01-01 21172000000 2012-01-01 23331000000 2013-01-01 23881000000