Year	National currency (Billions)
1990	-10.529
1991	-20.460
1992	-26.974
1993	-20.535
1994	-30.361
1995	-21.743
1996	-19.522
1997	-13.276
1998	-22.224
1999	-12.070
2000	-12.886
2001	23.281
2002	-22.615
2003	-29.045
2004	-52.981
2005	-66.409
2006	-19.344
2007	-60.366
2008	-70.122
2009	-72.894
2010	-217.480