Year	National currency (Billions)
1983	0.728
1984	0.758
1985	0.803
1986	0.876
1987	0.832
1988	0.896
1989	1.005
1990	1.115
1991	1.192
1992	1.422
1993	1.693
1994	1.576
1995	1.564
1996	1.763
1997	2.150
1998	2.309
1999	2.796
2000	2.942
2001	3.311
2002	3.557
2003	3.651
2004	3.933
2005	4.692
2006	4.966
2007	5.101
2008	6.225
2009	7.892
2010	7.128
2011	8.395
2012	9.947
2013	13.176
2014	15.454
2015	13.739
2016	13.572
2017	13.320
2018	16.134
2019	17.396
2020	19.398
2021	20.131
2022	24.390
2023	25.338
2024	26.842
2025	27.668
2026	28.450
2027	28.860
2028	30.694
2029	33.242