Year	National currency (Billions)
2002	-0.182
2003	0.049
2004	-0.063
2005	-0.221
2006	0.035
2007	0.416
2008	0.233
2009	0.227
2010	-0.052
2011	0.268
2012	-0.459
2013	-0.754
2014	-0.991
2015	-1.314
2016	-1.759
2017	-1.703
2018	-1.512
2019	-6.850
2020	-4.678
2021	-3.950
2022	-2.884
2023	0.455
2024	1.762
2025	1.995
2026	1.756
2027	1.175
2028	1.210
2029	1.386