Year	National currency (Billions)
1982	0.121
1983	0.143
1984	0.180
1985	0.238
1986	0.280
1987	0.361
1988	0.409
1989	0.581
1990	0.728
1991	0.867
1992	1.012
1993	1.262
1994	1.523
1995	1.798
1996	1.864
1997	2.167
1998	2.115
1999	2.054
2000	2.450
2001	2.853
2002	3.228
2003	3.662
2004	4.229
2005	4.653
2006	6.630
2007	7.285
2008	9.094
2009	9.430
2010	9.106
2011	9.622
2012	13.145
2013	13.250
2014	14.583
2015	15.321
2016	13.867
2017	15.247
2018	16.116
2019	16.417
2020	18.635
2021	17.584
2022	17.246
2023	22.318
2024	24.050
2025	23.273
2026	24.503
2027	25.888
2028	27.797
2029	29.758