Year	National currency (Billions)
1997	1.748
1998	1.576
1999	3.080
2000	3.836
2001	0.186
2002	-1.166
2003	-0.285
2004	1.452
2005	0.739
2006	1.352
2007	-4.549
2008	-15.264
2009	-16.432
2010	-16.661
2011	-13.486
2012	-10.798
2013	-8.786
2014	-6.427
2015	-4.480
2016	-4.317
2017	-2.541
2018	-0.823
2019	1.137
2020	-4.611
2021	0.823
2022	16.651
2023	10.826
2024	10.128
2025	7.135
2026	6.441
2027	4.940
2028	3.620
2029	2.957