Year National currency, Sum Over Component Sub-periods 1994-01-01 5740000000 1995-01-01 6380000000 1996-01-01 6671000000 1997-01-01 7438000000 1998-01-01 8088000000 1999-01-01 8103000000 2000-01-01 9574000000 2001-01-01 10454000000 2002-01-01 11082000000 2003-01-01 11417000000 2004-01-01 12933000000 2005-01-01 14599000000 2006-01-01 17276000000 2007-01-01 20022000000 2008-01-01 20529000000 2009-01-01 16586000000 2010-01-01 18973000000 2011-01-01 21450000000 2012-01-01 21631000000 2013-01-01 22026000000