Year	National currency (Billions)
1980	1.141
1981	1.378
1982	2.165
1983	5.631
1984	4.137
1985	4.318
1986	2.867
1987	2.473
1988	2.713
1989	2.901
1990	2.852
1991	2.782
1992	3.071
1993	3.427
1994	4.314
1995	4.457
1996	3.744
1997	4.076
1998	4.066
1999	4.324
2000	4.298
2001	3.945
2002	4.803
2003	3.910
2004	4.888
2005	5.107
2006	5.652
2007	5.998
2008	6.141
2009	6.026
2010	6.762
2011	6.923
2012	7.377
2013	7.603
2014	7.385
2015	6.876
2016	6.197
2017	6.126
2018	5.884
2019	5.960
2020	5.505
2021	5.512
2022	6.067
2023	5.860
2024	6.088
2025	6.253
2026	6.349
2027	6.427
2028	6.500
2029	6.578