Year	current US$
1990	12933093220.338984
1991	8912382608.695652
1992	6661506485.849056
1993	6919187301.587302
1994	7870249302.325582
1995	10180543873.837444
1996	10189789305.949009
1997	10111527611.044418
1998	10893287651.471436
1999	11000424522.08306
2000	10918374946.190271
2001	11020070088.845016
2002	12057382543.640898
2003	15208840680.319334
2004	19444956402.59093
2005	21887254072.876507
2006	25630375109.772926
2007	33276137346.745598
2008	38163318803.20468
2009	28245914567.97576
2010	30475638367.73339
2011	35608737592.56816
2012	32368232184.887115
2013	33668189401.41147
2014	34697051480.773605
2015	29807624110.650375
2016	30915723137.70708
2017	36028299306.8483
2018	41364665347.102715
2019	40802920386.196014
2020	36983089000.14174
2021	48057682639.08062
2022	55186778790.84068
2023	52750537704.800934