Year National Currency 1988-01-01 17224468137.1 1989-01-01 17871947823.7 1990-01-01 17904696568.8 1991-01-01 17479844817.8 1992-01-01 18091599156.9 1993-01-01 19246583830.0 1994-01-01 21035348926.7 1995-01-01 22455146577.3 1996-01-01 23244345179.1 1997-01-01 23660958950.3 1998-01-01 24137306426.2 1999-01-01 25783452661.2 2000-01-01 27313902266.0 2001-01-01 28516785392.5 2002-01-01 29599073116.9 2003-01-01 30223785159.1 2004-01-01 32218048030.8 2005-01-01 33767310687.7 2006-01-01 34054532017.7 2007-01-01 35510143048.4 2008-01-01 35548720010.6 2009-01-01 33997784138.7 2010-01-01 34863511293.3