Year	current US$
1992	227000000
1993	167000000
1994	340000000
1995	392000000
1996	687000000
1997	944000000
1998	887000000
1999	690000000
2000	709000000
2001	753000000
2002	796000000
2003	1141000000
2004	1846000000
2005	2490000000
2006	3678000000
2007	5215000000
2008	6302000000
2009	4500000000
2010	5257000000
2011	7065000000
2012	8037000000
2013	8023000000
2014	8602000000
2015	7300000000
2016	7342000000
2017	8057000000
2018	9362000000
2019	9518000000
2020	8049000000
2021	10099000000
2022	13548000000
2023	15514000000