Year	current US$
1989	14761099609.000002
1990	4769163636.333336
1991	2614204545.4545455
1992	8149820788.530465
1993	5182689343.469969
1994	1846111836.6020544
1995	-14822816228.544777
1996	-18498238583.225548
1997	-23042055321.375305
1998	-20535451010.196316
1999	-11107588703.662153
2000	-14837154501.71994
2001	-12279677753.792934
2002	4296672536.941469
2003	12399391351.676292
2004	22844658798.496746
2005	30323248288.072166
2006	29982705220.870243
2007	19039021641.882267
2008	-3214805206.986493
2009	-6721885359.212735
2010	-22994190061.88513
2011	-20128178014.60882
2012	-33507264617.891125
2013	-56911843574.17527
2014	-65368099306.74319
2015	-20783887933.045258
2016	7176956033.446443
2017	14820192743.661146
2018	7548801625.693623
2019	-12071834245.961023
2020	8930824788.043247
2021	9397892444.40671
2022	8695119065.370249
2023	51442237675.146866