Year	National currency (Billions)
2010	-0.708
2011	-1.086
2012	-0.089
2013	-0.963
2014	-0.653
2015	-2.094
2016	-0.024
2017	0.420
2018	1.835
2019	0.419
2020	-4.545
2021	-4.421
2022	-7.510
2023	-5.418
2024	-5.126
2025	-6.434
2026	-8.505
2027	-10.514
2028	-12.637
2029	-14.334