Year	National Currency
1970-01-01	16736641401.9
1971-01-01	19578393039.9
1972-01-01	22136206584.6
1973-01-01	25425130246.7
1974-01-01	29269839416.1
1975-01-01	32188562262.0
1976-01-01	35296966177.1
1977-01-01	37997823675.2
1978-01-01	41199101060.6
1979-01-01	45274727128.0
1980-01-01	49993993906.0
1981-01-01	53717064667.0
1982-01-01	56811789741.0
1983-01-01	59123485987.0
1984-01-01	62490940808.0
1985-01-01	65781865201.0
1986-01-01	70196390616.0
1987-01-01	74613192598.0
1988-01-01	79216190073.0
1989-01-01	84938443255.0
1990-01-01	94583603024.0
1991-01-01	106109872107.0
1992-01-01	119762746913.0
1993-01-01	129897369414.0
1994-01-01	137657837838.0
1995-01-01	146141170835.0
1996-01-01	153386495934.0
1997-01-01	160035523712.0
1998-01-01	170400834007.0
1999-01-01	182058308465.0
2000-01-01	198704927494.0
2001-01-01	207246018313.0
2002-01-01	212903693969.0
2003-01-01	218736056611.0
2004-01-01	225325618692.0
2005-01-01	230125695492.0
2006-01-01	235791990998.0
2007-01-01	249057606719.0
2008-01-01	261565800147.0
2009-01-01	264907700128.0
2010-01-01	273191946924.0
