Year	National currency (Billions)
1980	0.206
1981	0.260
1982	0.296
1983	0.319
1984	0.358
1985	0.393
1986	0.445
1987	0.492
1988	0.573
1989	0.608
1990	0.683
1991	0.722
1992	0.792
1993	0.814
1994	0.821
1995	0.905
1996	0.954
1997	0.999
1998	1.079
1999	1.126
2000	1.155
2001	1.248
2002	1.317
2003	1.375
2004	1.485
2005	1.566
2006	1.737
2007	1.927
2008	1.978
2009	1.929
2010	1.945
2011	1.927
2012	1.971
2013	2.065
2014	2.081
2015	2.124
2016	2.199
2017	2.279
2018	2.388
2019	2.459
2020	2.347
2021	2.355
2022	2.556
2023	2.810
2024	3.045
2025	3.227
2026	3.384
2027	3.545
2028	3.713
2029	3.889