Year	current US$
1986	52320000
1987	51480000
1988	29700000
1989	64310000
1990	91330000
1991	87370000
1992	83560000
1993	45790000
1994	13980000
1995	16941000
1996	63049000
1997	73882000
1998	66030000
1999	36133661
2000	25400474.551097095
2001	43840985.80696619
2002	20480000
2003	28287136.960792214
2004	30690000
2005	35000000
2006	37790000
2007	44090000
2008	94780000
2009	66860000
2010	60780000
2011	70590000
2012	155900000
2013	88580000
2014	63750485.5890584
2015	78448486.5855737
2016	52930990.4635085
2017	52360000
2018	101010000
2019	95380000
2020	64830000
2021	22760000
2022	137142000