Year	National currency (Billions)
1980	5.259
1981	6.158
1982	6.866
1983	7.961
1984	9.068
1985	10.385
1986	10.607
1987	10.184
1988	10.718
1989	11.038
1990	11.962
1991	12.685
1992	13.763
1993	14.608
1994	15.170
1995	15.903
1996	16.362
1997	17.373
1998	17.843
1999	17.896
2000	19.004
2001	19.881
2002	19.725
2003	19.292
2004	19.677
2005	20.224
2006	21.168
2007	22.222
2008	24.211
2009	25.659
2010	26.294
2011	27.055
2012	29.453
2013	30.992
2014	31.393
2015	32.968
2016	34.632
2017	34.737
2018	35.184
2019	34.787
2020	33.611
2021	34.651
2022	36.144
2023	36.618
2024	37.055
2025	38.200
2026	39.555
2027	40.834
2028	42.106
2029	43.447