Year	current US$
1987	3300000.0715255802
1988	10400000.154972088
1989	26490000.40069226
1990	97090000.65550214
1991	138969997.6034462
1992	248370001.61781916
1993	104839999.43919487
1994	85220002.15947634
1995	90510001.06520954
1996	69749998.26960269
1997	95760000.40397054
1998	129940000.22113328
1999	58439998.96571039
2000	27549999.87781046
2001	88419998.0627746
2002	100140001.88186775
2003	130239999.84562413
2004	205789999.2335588
2005	322809996.54717773
2006	451999999.32199687
2007	405890001.0660289
2008	606410002.4681547
2009	662189998.71239
2010	466669988.56700957
2011	330080000.5793571
2012	111020001.44869089
2013	103009999.98487529
2014	68410000.94637276
2015	38220000.52407379
2016	61889997.82502654
2017	93329998.26222655
2018	77210002.68869092
2019	86560001.28202136
2020	43350001.09672546
2021	97370001.53958802
2022	69259998.85797499