Year	National currency (Billions)
1985	0.164
1986	0.199
1987	0.209
1988	0.218
1989	0.262
1990	0.262
1991	0.305
1992	0.334
1993	0.402
1994	0.367
1995	0.395
1996	0.403
1997	0.423
1998	0.445
1999	0.521
2000	0.521
2001	0.532
2002	0.572
2003	0.611
2004	0.658
2005	0.797
2006	0.846
2007	0.811
2008	0.857
2009	0.928
2010	1.041
2011	1.143
2012	1.208
2013	1.140
2014	1.114
2015	1.157
2016	1.161
2017	1.257
2018	1.293
2019	1.421
2020	1.432
2021	1.432
2022	1.470
2023	1.588
2024	1.654
2025	1.718
2026	1.793
2027	1.870
2028	1.952
2029	2.037