Year	current US$
1999	179152000000
2000	188371000000
2001	190349000000
2002	216127000000
2003	255617000000
2004	306866000000
2005	334400000000
2006	366745000000
2007	430952000000
2008	471840000000
2009	370125000000
2010	407692000000
2011	475672000000
2012	445939000000
2013	468760000000
2014	472192000000
2015	396841000000
2016	398134000000
2017	429645000000
2018	468213000000
2019	446910000000
2020	421842000000
2021	549253000000
2022	637673000000
2023	562439000000