Year	National currency (Billions)
1980	1.354
1981	1.525
1982	1.603
1983	1.642
1984	1.705
1985	1.609
1986	1.259
1987	1.363
1988	1.685
1989	1.758
1990	1.867
1991	1.958
1992	2.046
1993	2.251
1994	2.411
1995	2.552
1996	2.653
1997	2.752
1998	2.630
1999	2.851
2000	3.408
2001	3.455
2002	3.607
2003	4.164
2004	4.944
2005	6.004
2006	6.958
2007	8.170
2008	9.667
2009	8.625
2010	9.668
2011	10.820
2012	11.562
2013	12.235
2014	12.554
2015	11.675
2016	12.120
2017	13.338
2018	14.214
2019	14.534
2020	13.018
2021	14.773
2022	16.688
2023	16.798
2024	17.593
2025	18.322
2026	19.075
2027	19.921
2028	20.841
2029	21.845