Year	U.S. dollars (Billions)
1998	-1.101
1999	-0.881
2000	-0.635
2001	-0.486
2002	-0.109
2003	0.105
2004	0.243
2005	0.632
2006	0.989
2007	0.488
2008	-0.802
2009	-0.945
2010	1.804
2011	-1.014
2012	-1.071
2013	-0.750
2014	-2.822
2015	-2.176
2016	-2.527
2017	-4.162
2018	-3.139
2019	-1.945
2020	-2.745
2021	-0.201
2022	-2.843
2023	-3.963
2024	-4.271
2025	-4.667
2026	-4.632
2027	-5.080
2028	-4.677
2029	-4.289