Year	current US$
1986	70000.0003
1987	70000.0003
1988	26709999.08
1989	22340000.15
1990	17969999.31
1991	13600000.38
1992	9229999.542
1993	4860000.134
1994	490000.0095
1995	740000
1996	1072000
1997	1480000
1998	4980000
1999	6015879
2000	1166455.04759399
2001	8715870.25803118
2002	15190000
2003	111046017.147184
2004	41640000
2005	41570000
2006	29500000
2007	15070000
2008	61520000
2009	52030000
2010	46260000
2011	64500000
2012	66300000
2013	93010000
2014	121425853.218437
2015	130582308.432555
2016	52170780.8592338
2017	44660000
2018	28430000
2019	158130000
2020	22530000
2021	343910000
2022	527275700
2023	557808002.524856