Year	National Currency
1970-01-01	15942255400000
1971-01-01	18245906700000
1972-01-01	19991470100000
1973-01-01	22658796200000
1974-01-01	24506104100000
1975-01-01	26398014500000
1976-01-01	29204290800000
1977-01-01	32442554600000
1978-01-01	36057929100000
1979-01-01	39017405900000
1980-01-01	40565309400000
1981-01-01	42770895000000
1982-01-01	46793886000000
1983-01-01	51412634000000
1984-01-01	56143626000000
1985-01-01	60408219000000
1986-01-01	67238686000000
1987-01-01	76567033000000
1988-01-01	87012571000000
1989-01-01	95321518000000
1990-01-01	104971140000000
1991-01-01	116307849000000
1992-01-01	125461771000000
1993-01-01	135796785000000
1994-01-01	149073629000000
1995-01-01	163278276000000
1996-01-01	176364907000000
1997-01-01	188228160000000
1998-01-01	180143949000000
1999-01-01	197719702000000
2000-01-01	216619505000000
2001-01-01	229067017000000
2002-01-01	248131296000000
2003-01-01	250074117000000
2004-01-01	255588524000000
2005-01-01	264588999000000
2006-01-01	275574153000000
2007-01-01	289957920000000
2008-01-01	298052491000000
2009-01-01	297419994000000
2010-01-01	310484384000000