Year	U.S. dollars (Billions)
1992	0.917
1993	0.665
1994	1.108
1995	1.493
1996	1.822
1997	1.767
1998	1.630
1999	1.242
2000	1.368
2001	1.525
2002	1.606
2003	1.920
2004	2.214
2005	2.459
2006	2.837
2007	3.807
2008	5.139
2009	4.690
2010	4.794
2011	6.198
2012	6.604
2013	7.335
2014	7.467
2015	6.678
2016	6.813
2017	7.703
2018	8.271
2019	9.372
2020	8.283
2021	9.256
2022	11.672
2023	12.775
2024	13.599
2025	14.666
2026	15.622
2027	16.520
2028	17.350
2029	18.216