Year	U.S. dollars (Billions)
1995	-1.369
1996	-4.121
1997	-3.565
1998	-1.254
1999	-1.464
2000	-2.717
2001	-3.273
2002	-4.165
2003	-5.696
2004	-4.452
2005	-2.869
2006	-3.834
2007	-8.718
2008	-4.414
2009	-4.682
2010	-7.424
2011	-4.792
2012	-3.234
2013	-1.113
2014	0.380
2015	0.843
2016	3.485
2017	3.383
2018	1.109
2019	0.835
2020	4.898
2021	-7.751
2022	-17.780
2023	4.050
2024	1.834
2025	3.357
2026	3.921
2027	4.834
2028	5.904
2029	6.206