Year	U.S. dollars (Billions)
1980	95.846
1981	101.481
1982	125.800
1983	156.927
1984	161.721
1985	180.541
1986	208.928
1987	277.019
1988	311.932
1989	379.427
1990	581.008
1991	304.065
1992	50.472
1993	64.449
1994	79.818
1995	114.941
1996	158.032
1997	184.138
1998	205.000
1999	275.092
2000	366.917
2001	330.978
2002	132.682
2003	158.416
2004	188.961
2005	228.428
2006	272.361
2007	360.928
2008	425.699
2009	440.408
2010	517.899
2011	625.430
2012	421.882
2013	428.321
2014	460.809
2015	408.288
2016	458.042
2017	486.829
2018	333.774
2019	241.658
2020	195.528
2021	289.294
2022	347.446
2023	403.526
2024	464.181
2025	486.247
2026	509.425
2027	532.170
2028	554.011
2029	576.239