Year	U.S. dollars (Billions)
1998	-0.469
1999	-0.455
2000	-0.178
2001	0.253
2002	-0.636
2003	-1.527
2004	-3.262
2005	-2.202
2006	-2.960
2007	-6.958
2008	-10.349
2009	-2.660
2010	-2.486
2011	-3.995
2012	-4.676
2013	-2.778
2014	-2.632
2015	-1.369
2016	-1.189
2017	-2.311
2018	-2.451
2019	-3.540
2020	-2.198
2021	-2.703
2022	-4.354
2023	-1.942
2024	-3.185
2025	-4.086
2026	-4.700
2027	-5.108
2028	-5.634
2029	-6.241