Year	National currency (Billions)
1980	4.662
1981	4.712
1982	4.569
1983	4.590
1984	4.926
1985	5.027
1986	5.438
1987	5.705
1988	6.077
1989	6.377
1990	6.618
1991	6.770
1992	7.079
1993	7.408
1994	7.718
1995	8.069
1996	8.256
1997	8.659
1998	9.223
1999	9.630
2000	9.945
2001	10.887
2002	11.123
2003	11.384
2004	11.610
2005	11.379
2006	11.219
2007	11.088
2008	10.884
2009	10.671
2010	10.627
2011	10.589
2012	10.592
2013	10.560
2014	10.434
2015	10.325
2016	10.194
2017	9.900
2018	9.468
2019	9.627
2020	9.224
2021	9.262
2022	9.559
2023	9.492
2024	9.473
2025	9.473
2026	9.502
2027	9.663
2028	9.740
2029	9.818