Year	National currency (Billions)
1980	0.474
1981	0.515
1982	0.502
1983	0.566
1984	0.698
1985	0.805
1986	0.941
1987	1.050
1988	1.198
1989	1.376
1990	1.587
1991	1.696
1992	1.826
1993	1.867
1994	1.959
1995	2.076
1996	2.140
1997	2.223
1998	2.397
1999	2.495
2000	2.489
2001	2.413
2002	2.487
2003	2.718
2004	2.925
2005	3.154
2006	3.465
2007	3.658
2008	3.834
2009	3.822
2010	4.021
2011	4.256
2012	4.357
2013	4.543
2014	4.763
2015	4.921
2016	5.133
2017	5.439
2018	5.593
2019	5.677
2020	4.332
2021	5.295
2022	6.314
2023	6.733
2024	7.051
2025	7.371
2026	7.683
2027	7.994
2028	8.316
2029	8.652