Year National Currency 1978-01-01 13052911450.4773 1979-01-01 13243307108.8463 1980-01-01 15032728794.9782 1981-01-01 16244319492.8594 1982-01-01 17774922082.2441 1983-01-01 19431066808.2119 1984-01-01 20866074912.2801 1985-01-01 22232659574.0033 1986-01-01 26191401782.3695 1987-01-01 31636420090.1456 1988-01-01 33910259893.1443 1989-01-01 31756210692.2372 1990-01-01 30576451765.3488 1991-01-01 29094836392.9685 1992-01-01 28720788257.7460 1993-01-01 26581117894.5553 1994-01-01 27607469484.1132 1995-01-01 29868653594.8000 1996-01-01 32643679012.3000 1997-01-01 37436132596.8000 1998-01-01 42562974358.7000 1999-01-01 46188090000.0000 2000-01-01 47174769232.0000 2001-01-01 49329777777.0000 2002-01-01 52675132979.0000 2003-01-01 54877760418.0000 2004-01-01 58094723618.0000 2005-01-01 63505671430.0000 2006-01-01 72259342105.0000 2007-01-01 83885611765.0000 2008-01-01 92672015094.0000 2009-01-01 89435118367.0000 2010-01-01 93040544001.0000