Year National currency, Sum Over Component Sub-periods 1999-01-01 5009000000 2000-01-01 4686000000 2001-01-01 8269000000 2002-01-01 7946000000 2003-01-01 6177000000 2004-01-01 5314000000 2005-01-01 5648000000 2006-01-01 5260000000 2007-01-01 4833000000 2008-01-01 5583000000 2009-01-01 5361000000 2010-01-01 4947000000 2011-01-01 5405000000 2012-01-01 5562000000