Year	National currency (Billions)
1990	-9.769
1991	-19.484
1992	-24.392
1993	-17.163
1994	-27.628
1995	-18.016
1996	-16.776
1997	-8.660
1998	-17.839
1999	-6.660
2000	-6.973
2001	29.594
2002	-15.830
2003	-21.540
2004	-41.981
2005	-49.009
2006	-1.444
2007	-44.366
2008	-55.022
2009	-56.694
2010	-202.553