Year	current US$
2002	562000000
2003	574000000
2004	570000000
2005	618000000
2006	638000000
2007	625000000
2008	758000000
2009	559000000
2010	541000000
2011	563000000
2012	646000000
2013	651000000
2014	695000000
2015	665000000
2016	639000000
2017	626000000
2018	662000000
2019	614000000
2020	686000000
2021	694000000
2022	677000000