Year	National currency (Billions)
2000	-0.865
2001	-0.799
2002	-0.191
2003	0.086
2004	0.072
2005	0.278
2006	0.441
2007	-0.181
2008	-1.503
2009	-1.491
2010	-1.061
2011	-0.643
2012	-0.343
2013	0.062
2014	-0.261
2015	0.185
2016	0.214
2017	0.562
2018	0.346
2019	0.230
2020	-0.945
2021	0.192
2022	0.109
2023	-0.457
2024	-1.288
2025	-1.369
2026	-1.271
2027	-1.049
2028	-0.758
2029	-0.592