Year	current US$
1988	5599999.90463257
1989	5230000.01907349
1990	19899999.6185303
1991	8239999.77111816
1992	47189998.626709
1993	49040000.9155273
1994	19790000.915527303
1995	14369999.8855591
1996	38919998.1689453
1997	12560000.4196167
1998	43310001.373291
1999	14819999.6948242
2000	22440000.5340576
2001	29690000.5340576
2002	30760000.2288818
2003	51610000.6103516
2004	54540000.9155273
2005	66680000.305175796
2006	51599998.4741211
2007	74629997.253418
2008	93000000
2009	97599998.4741211
2010	69010002.1362305
2011	51380001.0681152
2012	23680000.3051758
2013	19829999.9237061
2014	16930000.3051758
2015	6969999.79019165
2016	14760000.2288818
2017	15479999.5422363
2018	28020000.4577637
2019	16280000.6866455
2020	19940000.5340576
2021	42419998.1689453
2022	28899999.6185303