Year	current US$
1992	206000000
1993	254000000
1994	394000000
1995	674000000
1996	856000000
1997	892000000
1998	902000000
1999	800000000
2000	882000000
2001	874000000
2002	987000000
2003	1280000000
2004	1351000000
2005	1802000000
2006	2192000000
2007	3268000000
2008	4426000000
2009	3321000000
2010	3783000000
2011	4145000000
2012	4261000000
2013	4477000000
2014	4401000000
2015	3239000000
2016	3273000000
2017	4189000000
2018	4963000000
2019	5514000000
2020	4559000000
2021	5357000000
2022	8769000000
2023	12308000000