Year	current US$
1988	709999.978542328
1989	1799999.95231628
1990	229999.99858438957
1991	24040000.89317556
1992	239999.97973442104
1993	60000.00238418598
1994	539999.976754189
1995	6949999.377131431
1996	14240000.018849995
1997	8519999.908283355
1998	30270000.513643067
1999	93999999.36483811
2000	51149998.64436688
2001	80270001.19350846
2002	99489997.7892637
2003	112749998.82094565
2004	112339997.82428145
2005	47990000.8253753
2006	147379996.67041004
2007	114659998.44484031
2008	185029999.90060928
2009	210419997.60270134
2010	89079998.54162344
2011	39290001.66244803
2012	-5930000.083521003
2013	-13439999.921247358
2014	-15059999.94277954
2015	-31189999.941736486
2016	23369999.78311363
2017	56449997.48282133
2018	26169999.966398
2019	20929999.93450941
2020	-1130000.449717008
2021	-26989999.573677704
2022	80230003.07194895