Year	current US$
1980	4000000
1981	6000000
1982	4000000
1983	12000000
1984	8000000
1985	10000000
1986	22000000
1987	40000000
1988	84100000
1989	110350000
1990	142310000
1991	205180000
1992	292780000
1993	235250000
1994	303180000
1995	257529999.99999997
1996	217930000
1997	250480000
1998	258540000.00000003
1999	275980000
2000	270620000
2001	268450000
2002	322580000
2003	319600000
2004	1031050000
2005	377120000
2006	396350000
2007	470540000
2008	620150000
2009	512700000.00000006
2010	648960000
2011	707820000
2012	580780000
2013	488320000
2014	430230000
2015	308030000
2016	343070000
2017	380740000
2018	387790000
2019	381630000
2020	420500000
2021	446980000
2022	439570000