Year	National currency (Billions)
2004	-0.723
2005	-0.853
2006	3.705
2007	-0.412
2008	-2.473
2009	-2.823
2010	0.804
2011	1.619
2012	4.586
2013	0.131
2014	-3.687
2015	-3.111
2016	2.040
2017	3.518
2018	11.662
2019	10.310
2020	11.431
2021	11.441
2022	-8.165
2023	-6.880
2024	-3.911
2025	-2.598
2026	2.290
2027	8.007
2028	12.649
2029	13.574