Year	current US$
1993	293300000
1994	161400000
1995	97690000
1996	136160000
1997	132210000.00000001
1998	55710000
1999	53850000
2000	76300000
2001	124000000
2002	153200000
2011	256040000.00000003
2012	716400000
2013	71000000
2014	125200000
2015	612930000
2016	407580000
2017	342180000
2018	562590000
2019	784870000
2020	45170000
2022	182200000