Year	current US$
1992	3967000000
1993	3887000000
1994	3561000000
1995	3807000000
1996	4241000000
1997	4301000000
1998	4314000000
1999	3655000000
2000	5040000000
2001	6446000000
2002	6584000000
2003	8409000000
2004	12781000000
2005	17353000000
2006	23677000000
2007	32756000000
2008	37889000000
2009	28409000000
2010	31107000000
2011	36906000000
2012	46358000000
2013	48806000000
2014	41296000000
2015	30568000000
2016	24995000000
2017	29266000000
2018	32534000000
2019	37757000000
2020	37222000000
2021	41171000000
2022	50934000000
2023	60655000000