Year	current US$
1986	3155555.487
1987	5133333.206
1988	3859259.367
1989	3048148.155
1990	3051851.85185185
1991	800000
1993	2962962.96296296
1994	2625925.92592592
1995	2337037.03703704
1996	2188888.88888889
1997	3696296.2962963
1998	3844444.44444444
1999	3633333.33333333
2000	4459259.25925926
2001	4545555.55555556
2002	3801851.85185185
2003	3653200
2004	3939251.85185185
2005	9948010.79510163
2006	11023014.5140161
2007	12249733.0152168
2008	12655053.2304171
2009	12537672.0911636
2010	12679802.0234216
2011	12821263.7051465
2012	13135138.4835293
2013	13624457.2873507
2014	11544080.6020741
2015	10052444.7155805
2016	12403062.647657
2017	12273181.1450927
2018	10815235.0144796
2019	10428523.9592593
2020	9821315.31283704
2021	8083617.50059625
2022	11807721.5857997