Year	National currency (Billions)
1990	0.300
1991	0.826
1992	0.011
1993	-0.589
1994	-0.291
1995	0.443
1996	1.507
1997	-0.303
1998	-0.341
1999	0.980
2000	2.759
2001	0.014
2002	1.877
2003	2.139
2004	5.027
2005	19.419
2006	22.964
2007	24.364
2008	29.364
2009	-4.162
2010	10.952
2011	-6.752
2012	28.737
2013	-15.618
2014	-22.271
2015	-19.172
2016	-20.326
2017	-10.354
2018	9.832
2019	11.552
2020	-14.492
2021	23.576
2022	49.113
2023	18.411
2024	12.134
2025	10.167
2026	9.748
2027	8.223
2028	6.469
2029	5.841