Year	current US$
1992	4500000000
1993	4666000000
1994	5229000000
1995	7352000000
1996	7784000000
1997	9101000000
1998	8276000000
1999	7799000000
2000	7887000000
2001	9147000000
2002	10711000000
2003	14209000000
2004	16612000000
2005	18599000000
2006	21477000000
2007	25617000000
2008	30728000000
2009	21123000000
2010	20067000000
2011	22663000000
2012	20832000000
2013	22022000000
2014	22809000000
2015	20571000000
2016	21903000000
2017	24829000000
2018	28203000000
2019	28160000000
2020	26830000000
2021	34527000000
2022	44623000000
2023	43181000000