Year	U.S. dollars (Billions)
2000	-0.015
2001	-0.032
2002	-0.042
2003	-0.044
2004	0.066
2005	0.262
2006	0.544
2007	1.167
2008	2.042
2009	1.195
2010	1.589
2011	2.219
2012	2.648
2013	2.392
2014	1.094
2015	0.204
2016	-0.544
2017	-0.284
2018	-0.191
2019	0.378
2020	-0.281
2021	0.151
2022	0.273
2023	-0.373
2024	-0.837
2025	-0.936
2026	-1.032
2027	-1.136
2028	-1.227
2029	-1.322