Year	U.S. dollars (Billions)
1992	-0.053
1993	-0.086
1994	-0.084
1995	-0.235
1996	-0.425
1997	-0.138
1998	-0.364
1999	-0.184
2000	-0.059
2001	-0.024
2002	0.045
2003	0.194
2004	0.135
2005	0.093
2006	-0.070
2007	-0.193
2008	-0.708
2009	-0.202
2010	-0.317
2011	-0.479
2012	-1.020
2013	-1.016
2014	-1.269
2015	-1.059
2016	-0.792
2017	-0.477
2018	-0.997
2019	-1.073
2020	0.374
2021	-0.739
2022	-5.085
2023	-3.889
2024	-1.287
2025	-1.171
2026	-0.920
2027	-0.825
2028	-0.864
2029	-0.916