Year	current US$
1992	68000000
1993	69000000
1994	155000000
1995	151000000
1996	199000000
1997	240000000
1998	191000000
1999	238000000
2000	323000000
2001	318000000
2002	346000000
2003	461000000
2004	647000000
2005	865000000
2006	936000000
2007	1232000000
2008	1495000000
2009	1134000000
2010	1677000000
2011	2189000000
2012	2376000000
2013	2910000000
2014	2861000000
2015	2204000000
2016	2117000000
2017	2746000000
2018	3380000000
2019	3798000000
2020	3341000000
2021	4243000000
2022	5583000000
2023	6091000000