Year	current US$
1989	41530777202.07254
1990	38108069549.710205
1991	28865636863.463806
1992	25031554166.666668
1993	26216160778.896126
1994	29943804264.42067
1995	37189172175.007866
1996	36628932857.606224
1997	35252945755.68433
1998	41198631638.72108
1999	35512099389.2847
2000	37019398195.74806
2001	40169432696.08293
2002	45604156412.42603
2003	56454813197.68302
2004	71825390351.98859
2005	95561781584.83525
2006	117949645298.67215
2007	168941412980.62134
2008	209607934746.61932
2009	171894216031.41678
2010	168059466534.50394
2011	190278195163.16953
2012	176171391499.9135
2013	187003413246.18375
2014	198772885441.9372
2015	176015185485.96277
2016	182790641466.5217
2017	207139707913.05695
2018	238868683969.04114
2019	247447077803.40616
2020	247570558167.87592
2021	280082574126.584
2022	289938300193.5597
2023	341578460638.78625