Year	National Currency
1978-01-01	16210476884.8
1979-01-01	18508039193.4
1980-01-01	21524725026.2
1981-01-01	24233551593.0
1982-01-01	27654003274.0
1983-01-01	29680870278.2
1984-01-01	31567423722.1
1985-01-01	32756982274.0
1986-01-01	33867820067.1
1987-01-01	35629226333.9
1988-01-01	38180712154.4
1989-01-01	40636926060.7
1990-01-01	43109878495.0
1991-01-01	44365856002.0
1992-01-01	46015721948.0
1993-01-01	45773207210.0
1994-01-01	45390211739.0
1995-01-01	45231661301.0
1996-01-01	44579889948.0
1997-01-01	43579458217.0
1998-01-01	43733538548.0
1999-01-01	44793656317.0
2000-01-01	48354821786.0
2001-01-01	50316683120.0
2002-01-01	53155986426.0
2003-01-01	55658849749.0
2004-01-01	59443126262.0
2005-01-01	63175583506.0
2006-01-01	68495450014.0
2007-01-01	73711736052.0
2008-01-01	77427871536.0
2009-01-01	76388095138.0
2010-01-01	76438966633.0