Year	current US$
1988	29999.999329447783
1989	1919999.949634071
1990	9049999.769777056
1991	3660000.0336766243
1992	7769999.941810964
1993	15289999.63216479
1994	9839999.858289964
1995	12299999.730661508
1996	10410000.03181398
1997	4949999.954551456
1998	1669999.9663978796
1999	1259999.9960511918
2000	9269999.656826261
2001	620000.0084936614
2002	7010000.146925445
2003	63230000.5238503
2004	97870002.44855876
2005	175529993.77995753
2006	94780000.56557357
2007	102149998.63691631
2008	87420000.56430697
2009	90610000.2769381
2010	187169999.64974824
2011	145310000.7362664
2012	266209998.79948792
2013	335600003.4902242
2014	319189996.93728983
2015	307020002.571866
2016	357539998.57418245
2017	329949998.0416147
2018	327800002.47433776
2019	335009999.6589125
2020	295739999.28683037
2021	372339999.72045416
2022	370659997.7519362