Year	current US$
1999	191095627788.8032
2000	181197546990.80212
2001	178908884267.0627
2002	190822521645.12064
2003	221855492535.46805
2004	257218787049.33444
2005	269692431086.20834
2006	295830867552.29803
2007	339745395064.94604
2008	373436332791.0506
2009	323170182563.63354
2010	317220883354.057
2011	362150580143.9742
2012	347053535670.2542
2013	371670340710.2861
2014	389654765739.2092
2015	348444514961.2169
2016	357446356977.9996
2017	395733644219.92676
2018	431696488610.39667
2019	432150008319.3993