Year	current US$
1986	11148148.54
1987	10925926.21
1988	4314815.044
1989	9474074.364
1990	6311111.11111111
1991	7867901.325
1992	9424691.2
1993	10981481.4814815
1994	8396296.2962963
1995	7859259.25925926
1996	2051851.85185185
1997	1111111.11111111
1998	1085185.18518518
1999	1581851.85185185
2000	1558148.14814815
2001	1564444.44444444
2002	1411481.48148148
2003	1489292.59259259
2004	1566737.03703704
2005	37356938.9733342
2006	39912337.5431445
2007	48278132.5138068
2008	51046970.3667893
2009	48365332.4423548
2010	48919119.1843307
2011	48524100.8269397
2012	50128385.6921298
2013	49248879.3135012
2014	52088361.5547778
2015	52822644.38
2016	54742927.4962963
2017	55445390.1111111
2018	54174267.5481481
2019	47551576.2174111
2020	44158258.3572766
2021	52124108.4092389
2022	55995754.7968056