Year	National Currency
1975-01-01	6283409110.2
1976-01-01	6500559266.5
1977-01-01	6792085011.6
1978-01-01	7089587366.4
1979-01-01	7457480903.4
1980-01-01	7849944947.4
1981-01-01	8274284243.7
1982-01-01	8702607946.6
1983-01-01	9095071990.4
1984-01-01	9563903826.5
1985-01-01	10036720069.0
1986-01-01	10685514266.8
1987-01-01	10977040011.8
1988-01-01	11413332527.8
1989-01-01	11991735543.5
1990-01-01	12157088414.8
1991-01-01	11837671824.0
1992-01-01	11653725055.6
1993-01-01	11702202001.8
1994-01-01	12078728419.6
1995-01-01	12890883285.6
1996-01-01	13471278504.6
1997-01-01	14134682193.3
1998-01-01	14736327580.5
1999-01-01	15418989233.9
2000-01-01	16019970553.4
2001-01-01	16314152569.4
2002-01-01	16223175286.9
2003-01-01	16175362408.3
2004-01-01	16867985078.2
2005-01-01	17429786400.0
2006-01-01	18226667707.6
2007-01-01	19170307989.3
2008-01-01	19680976093.9
2009-01-01	19311754421.4
2010-01-01	19383473739.1