Year National currency, Sum Over Component Sub-periods 1995-01-01 2340000000 1996-01-01 2727000000 1997-01-01 3566000000 1998-01-01 3838000000 1999-01-01 5108000000 2000-01-01 7392000000 2001-01-01 7170000000 2002-01-01 8584000000 2003-01-01 8830000000 2004-01-01 10444000000 2005-01-01 13043000000 2006-01-01 16555000000 2007-01-01 19846000000 2008-01-01 19944000000 2009-01-01 17578000000 2010-01-01 19766000000 2011-01-01 21188000000 2012-01-01 23354000000 2013-01-01 23891000000