Year	current US$
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	600000.023841858
1988	8209999.918937679
1989	16059999.9204278
1990	44150000.4101545
1991	42859999.809414096
1992	40439999.1109967
1993	29369999.1088361
1994	16710000.110790102
1995	41730000.0153482
1996	40490000.1566857
1997	91620000.1202524
1998	20319999.707862698
1999	15169999.808073
2000	28940000.532195
2001	33419999.8825789
2002	74429998.440668
2003	71020001.0575354
2004	90869998.9132583
2005	245910002.872348
2006	137010001.398623
2007	257199999.883771
2008	490210001.319647
2009	550710007.429123
2010	590150012.761354
2011	330089997.78144103
2012	193199999.999255
2013	110119999.200106
2014	93440000.5154312
2015	52650000.2034009
2016	95779999.6864051
2017	142699998.982251
2018	124170001.165941
2019	114959998.954087
2020	96950000.9156764
2021	154549999.92810202
2022	128269999.89524491