Year	National currency (Billions)
1990	0.498
1991	0.512
1992	0.512
1993	0.562
1994	0.527
1995	0.561
1996	0.634
1997	0.706
1998	0.554
1999	0.660
2000	1.047
2001	0.981
2002	1.027
2003	1.146
2004	1.301
2005	1.671
2006	1.841
2007	2.038
2008	2.698
2009	1.729
2010	2.196
2011	2.842
2012	3.046
2013	2.977
2014	3.133
2015	2.126
2016	2.127
2017	2.421
2018	3.094
2019	3.447
2020	2.329
2021	3.080
2022	3.910
2023	3.498
2024	3.657
2025	3.525
2026	3.451
2027	3.419
2028	3.487
2029	3.561