Year	U.S. dollars (Billions)
1992	-0.039
1993	-0.181
1994	-0.098
1995	-0.085
1996	-0.192
1997	-0.275
1998	-0.335
1999	-0.068
2000	-0.098
2001	-0.027
2002	-0.020
2003	-0.130
2004	-0.046
2005	-0.226
2006	-0.386
2007	-0.671
2008	-0.976
2009	-0.485
2010	-0.481
2011	-0.852
2012	-0.644
2013	-0.490
2014	-0.568
2015	-0.463
2016	-0.288
2017	-0.555
2018	-1.212
2019	-1.106
2020	-0.887
2021	-1.699
2022	-2.295
2023	-2.179
2024	-2.108
2025	-2.085
2026	-2.101
2027	-2.308
2028	-2.474
2029	-2.493