Year	current US$
1992	360000000
1993	365000000
1994	894000000
1995	1082000000
1996	1882000000
1997	2333000000
1998	2910000000
1999	3305000000
2000	3107000000
2001	3354000000
2002	3872000000
2003	4801000000
2004	5915000000
2005	7070000000
2006	7345000000
2007	9720000000
2008	12189000000
2009	8773000000
2010	9223000000
2011	11051000000
2012	10019000000
2013	10295000000
2014	10988000000
2015	8986000000
2016	9146000000
2017	10504000000
2018	11630000000
2019	11159000000
2020	9873000000
2021	13029000000
2022	15377000000
2023	15355000000