Year	National currency (Billions)
1990	0.378
1991	0.386
1992	0.401
1993	0.401
1994	0.445
1995	0.431
1996	0.393
1997	0.393
1998	0.430
1999	0.601
2000	0.626
2001	0.648
2002	0.700
2003	0.760
2004	0.869
2005	0.791
2006	0.777
2007	0.933
2008	0.994
2009	1.104
2010	1.188
2011	1.233
2012	1.337
2013	1.446
2014	1.563
2015	1.594
2016	1.746
2017	1.572
2018	1.657
2019	1.674
2020	1.865
2021	2.118
2022	2.248
2023	2.411
2024	2.664
2025	2.770
2026	2.800
2027	2.802
2028	2.813
2029	2.785