Year	National currency (Billions)
1982	0.130
1983	0.133
1984	0.152
1985	0.227
1986	0.273
1987	0.389
1988	0.432
1989	0.525
1990	0.575
1991	0.662
1992	0.894
1993	1.043
1994	1.334
1995	1.603
1996	1.774
1997	2.154
1998	2.744
1999	2.940
2000	2.511
2001	3.057
2002	3.431
2003	3.582
2004	3.624
2005	4.164
2006	5.232
2007	6.033
2008	7.914
2009	10.068
2010	9.376
2011	11.512
2012	12.194
2013	13.862
2014	13.726
2015	15.709
2016	16.781
2017	15.893
2018	17.655
2019	18.385
2020	18.639
2021	19.525
2022	19.302
2023	20.989
2024	22.788
2025	24.337
2026	26.021
2027	27.670
2028	29.527
2029	31.612