Year	National Currency
1970-01-01	5174986463.6
1971-01-01	6011343710.8
1972-01-01	6570297614.4
1973-01-01	8058906486.9
1974-01-01	9676195209.4
1975-01-01	11371877011.5
1976-01-01	12827235417.5
1977-01-01	14225516677.3
1978-01-01	14005155325.8
1979-01-01	14985656124.4
1980-01-01	17185507940.2
1981-01-01	20585926324.7
1982-01-01	19681255545.7
1983-01-01	19346125650.6
1984-01-01	19591063228.4
1985-01-01	21511880116.5
1986-01-01	23185645488.9
1987-01-01	27185509713.4
1988-01-01	30917107475.6
1989-01-01	34434474772.9
1990-01-01	35907261980.6
1991-01-01	33894959321.0
1992-01-01	32931891616.1
1993-01-01	32150147315.3
1994-01-01	32776253371.1
1995-01-01	32736267002.2
1996-01-01	33685021728.7
1997-01-01	37991749812.2
1998-01-01	39478599950.4
1999-01-01	40994304715.2
2000-01-01	44192194242.0
2001-01-01	46334897049.0
2002-01-01	48428999264.0
2003-01-01	50177610833.0
2004-01-01	54240418880.0
2005-01-01	59398147469.0
2006-01-01	67886812339.0
2007-01-01	76601726669.0
2008-01-01	82948887287.0
2009-01-01	79544011899.0
2010-01-01	85074479588.0