Year	National currency (Billions)
1980	1.828
1981	1.640
1982	1.690
1983	1.625
1984	1.527
1985	1.669
1986	1.572
1987	1.526
1988	1.556
1989	1.605
1990	1.570
1991	1.589
1992	1.600
1993	1.618
1994	1.654
1995	1.687
1996	1.712
1997	1.729
1998	1.772
1999	1.816
2000	1.825
2001	1.868
2002	1.913
2003	2.039
2004	2.117
2005	2.267
2006	2.473
2007	2.554
2008	2.763
2009	2.854
2010	2.896
2011	2.953
2012	3.040
2013	3.196
2014	3.353
2015	3.405
2016	3.581
2017	3.728
2018	3.891
2019	3.970
2020	4.074
2021	4.151
2022	4.154
2023	4.141
2024	4.262
2025	4.436
2026	4.580
2027	4.729
2028	4.883
2029	5.046