Year National Currency 1987-01-01 27015006570.5 1988-01-01 27361008618.3 1989-01-01 27814582726.2 1990-01-01 29550725092.0 1991-01-01 31027676963.2 1992-01-01 32491858469.3 1993-01-01 32592995584.2 1994-01-01 32699418221.9 1995-01-01 33477147000.8 1996-01-01 33817790119.2 1997-01-01 35015417585.8 1998-01-01 36638886254.0 1999-01-01 37672961804.8 2000-01-01 39195478241.8 2001-01-01 40577287426.1 2002-01-01 41702625586.3 2003-01-01 42010760435.7 2004-01-01 42433382252.0 2005-01-01 41959266908.6 2006-01-01 42964020219.7 2007-01-01 44519508980.6 2008-01-01 46424494024.0 2009-01-01 46232098677.0 2010-01-01 45818499932.0