Year	National currency (Billions)
1990	75.841
1991	106.758
1992	126.955
1993	121.671
1994	153.148
1995	169.906
1996	191.323
1997	216.013
1998	227.864
1999	229.569
2000	259.197
2001	282.736
2002	318.369
2003	350.609
2004	396.904
2005	424.456
2006	454.638
2007	519.435
2008	561.327
2009	674.079
2010	799.504