Year	National currency (Billions)
1980	0.111
1981	0.148
1982	0.155
1983	0.211
1984	0.327
1985	0.577
1986	1.073
1987	2.002
1988	3.284
1989	5.831
1990	13.103
1991	27.242
1992	46.934
1993	71.237
1994	106.197
1995	147.621
1996	197.050
1997	246.907
1998	290.023
1999	296.702
2000	301.275
2001	303.676
2002	315.546
2003	370.704
2004	428.589
2005	463.684
2006	514.224
2007	599.457
2008	694.024
2009	779.526
2010	881.592
2011	1010.630
2012	1135.933
2013	1285.529
2014	1451.549
2015	1588.292
2016	1733.770
2017	1864.140
2018	2007.722
2019	2193.673
2020	2254.794
2021	2646.326
2022	2888.512
2023	2998.593
2024	3285.166
2025	3557.727
2026	3838.385
2027	4126.354
2028	4429.485
2029	4752.767