Year	U.S. dollars (Billions)
1980	23.042
1981	23.629
1982	24.064
1983	21.839
1984	21.174
1985	21.441
1986	24.698
1987	27.144
1988	29.703
1989	30.323
1990	34.366
1991	34.754
1992	38.731
1993	40.125
1994	43.167
1995	46.426
1996	46.659
1997	47.297
1998	48.707
1999	49.073
2000	47.218
2001	53.750
2002	67.609
2003	85.285
2004	104.121
2005	113.211
2006	115.716
2007	140.187
2008	158.326
2009	131.069
2010	132.175
2011	141.942
2012	128.814
2013	135.684
2014	141.034
2015	125.174
2016	128.610
2017	143.112
2018	160.566
2019	164.011
2020	157.227
2021	182.090
2022	178.121
2023	212.610
2024	223.413
2025	240.121
2026	254.150
2027	269.148
2028	285.531
2029	302.462