Year	current US$
1988	29999.999329447703
1989	9999.99977648258
1990	99999.9977648258
1991	700000.0122934579
1992	830000.0037997952
1993	43050001.66781247
1994	18019999.681040667
1995	30780000.600963857
1996	21179999.34405089
1997	12380000.110715631
1998	-17590000.476688113
1999	36959999.607875876
2000	24069999.627769027
2001	32540000.15184284
2002	45229999.87564983
2003	10949999.943375591
2004	15539999.835193165
2005	10530000.114813445
2006	39120000.483468145
2007	23690000.390633937
2008	25310000.130906694
2009	56219999.83116984
2010	81049998.89992177
2011	56990000.00208615
2012	41080000.08203092
2013	25439999.58783382
2014	44350000.068545274
2015	19569999.91834165
2016	50809998.478740364
2017	79570000.65408643
2018	56299999.328330114
2019	103499999.59953134
2020	89070001.33395195
2021	67840000.51952899
2022	143100003.40081763