Year National Currency 1980-01-01 15305323219.4 1981-01-01 16008070568.9 1982-01-01 17001915798.1 1983-01-01 17712950957.3 1984-01-01 18647539398.5 1985-01-01 20097414123.9 1986-01-01 20450488422.9 1987-01-01 20433364915.5 1988-01-01 21627941479.3 1989-01-01 23523052923.1 1990-01-01 24961368940.4 1991-01-01 25242462836.0 1992-01-01 25765963956.2 1993-01-01 25845000268.9 1994-01-01 27025455087.2 1995-01-01 28323596491.2 1996-01-01 28721506686.5 1997-01-01 29582096385.6 1998-01-01 29914393984.9 1999-01-01 30647949695.1 2000-01-01 31100334841.5 2001-01-01 32355654708.6 2002-01-01 32530420155.0 2003-01-01 32218380191.6 2004-01-01 32598980424.2 2005-01-01 32705402640.3 2006-01-01 33590163061.6 2007-01-01 34807956302.6 2008-01-01 35573384874.4 2009-01-01 34267381370.8 2010-01-01 34465437158.6