Year	National currency (Billions)
1983	0.632
1984	0.723
1985	0.743
1986	0.792
1987	0.843
1988	0.911
1989	1.020
1990	1.022
1991	1.159
1992	1.151
1993	1.340
1994	1.493
1995	1.663
1996	1.969
1997	2.221
1998	2.290
1999	2.544
2000	2.985
2001	3.107
2002	3.258
2003	3.688
2004	4.343
2005	5.341
2006	6.329
2007	7.054
2008	7.087
2009	6.136
2010	8.315
2011	9.340
2012	9.419
2013	9.897
2014	11.875
2015	11.003
2016	10.486
2017	11.525
2018	14.086
2019	13.681
2020	12.093
2021	13.860
2022	18.538
2023	20.403
2024	22.032
2025	24.284
2026	26.541
2027	28.989
2028	31.023
2029	33.877