Year	current US$
1992	780600000
1994	4983700000
1995	5090500000
1996	11506320000
1997	8098240000
1998	10155000000
1999	690910000
2000	4398800000
2001	2411030000
2002	2291010000
2003	6127850000
2004	1787290000
2005	8828450000
2006	5903510000
2007	10730380000
2008	14029230000
2009	11627570000
2011	8357870000
2012	28764600000
2013	17132590000
2014	42942740000
2015	11622140000
2016	10895670000
2017	20896540000
2018	31612110000
2019	32125970000
2020	5581760000
2021	16124670000
2022	42709250000