Year	National currency (Billions)
1980	1.454
1981	1.528
1982	1.560
1983	1.624
1984	1.754
1985	1.975
1986	2.259
1987	2.348
1988	2.674
1989	2.914
1990	3.202
1991	3.214
1992	3.470
1993	3.490
1994	3.546
1995	3.608
1996	3.713
1997	3.688
1998	3.919
1999	4.024
2000	4.026
2001	3.889
2002	3.905
2003	4.071
2004	4.367
2005	4.349
2006	4.632
2007	4.722
2008	4.952
2009	4.859
2010	4.883
2011	5.121
2012	5.102
2013	4.988
2014	5.053
2015	5.041
2016	5.233
2017	5.410
2018	5.564
2019	5.553
2020	4.244
2021	4.724
2022	5.464
2023	5.629
2024	5.767
2025	5.889
2026	5.993
2027	6.083
2028	6.174
2029	6.266