Year	National currency (Billions)
1980	0.333
1981	0.378
1982	0.392
1983	0.446
1984	0.518
1985	0.631
1986	0.751
1987	0.882
1988	1.127
1989	1.360
1990	1.644
1991	2.051
1992	2.460
1993	2.827
1994	3.247
1995	3.742
1996	4.200
1997	4.732
1998	5.244
1999	5.722
2000	6.395
2001	7.376
2002	8.323
2003	9.009
2004	9.996
2005	11.071
2006	12.105
2007	12.538
2008	14.636
2009	15.153
2010	16.950
2011	19.131
2012	20.970
2013	23.754
2014	27.396
2015	30.356
2016	31.010
2017	31.508
2018	34.007
2019	34.355
2020	34.239
2021	36.039
2022	39.516
2023	42.523
2024	45.884
2025	49.389
2026	53.161
2027	56.922
2028	60.910
2029	65.194