Year	National currency (Billions)
1980	1.395
1981	1.607
1982	1.880
1983	2.086
1984	2.454
1985	2.719
1986	2.935
1987	3.268
1988	3.656
1989	4.140
1990	4.689
1991	4.907
1992	5.693
1993	6.028
1994	6.721
1995	7.678
1996	7.980
1997	8.374
1998	9.060
1999	9.732
2000	10.595
2001	11.417
2002	11.877
2003	12.845
2004	13.857
2005	14.822
2006	16.000
2007	17.512
2008	19.010
2009	18.675
2010	19.461
2011	19.858
2012	19.495
2013	18.040
2014	17.483
2015	17.944
2016	19.014
2017	20.312
2018	21.675
2019	23.178
2020	22.087
2021	24.928
2022	27.777
2023	29.757
2024	31.733
2025	33.476
2026	35.259
2027	37.170
2028	39.091
2029	41.063