Year	current US$
1999	239023295299.94196
2000	227630638007.4444
2001	225883823565.6943
2002	240729965520.51028
2003	279224363397.60333
2004	325591353369.2312
2005	343532375192.2224
2006	374333004391.7912
2007	434151267166.2821
2008	488469833232.22577
2009	426996396992.8304
2010	424920135171.4687
2011	491024085792.234
2012	482223198886.1696
2013	522253505568.4809
2014	539719062765.835
2015	477924758922.1341
2016	477407366615.3422
2017	531628546557.1569
2018	584532109736.1191
2019	589620761238.2823