Year	National currency (Billions)
1980	0.764
1981	0.794
1982	0.814
1983	0.841
1984	0.885
1985	0.923
1986	0.973
1987	0.979
1988	1.108
1989	1.144
1990	1.199
1991	1.226
1992	1.313
1993	1.360
1994	1.344
1995	1.436
1996	1.451
1997	1.505
1998	1.572
1999	1.605
2000	1.634
2001	1.661
2002	1.742
2003	1.848
2004	1.918
2005	1.961
2006	2.089
2007	2.154
2008	2.163
2009	2.137
2010	2.045
2011	2.033
2012	2.054
2013	2.105
2014	2.129
2015	2.188
2016	2.279
2017	2.314
2018	2.388
2019	2.403
2020	2.314
2021	2.331
2022	2.459
2023	2.612
2024	2.751
2025	2.858
2026	2.938
2027	3.018
2028	3.099
2029	3.183