Year	current US$
2002	36718549674.1962
2003	43106832222.4263
2004	54579193166.7748
2005	56676855219.9358
2006	60920746277.3558
2007	74772179144.3765
2008	73057482576.0539
2009	54267515986.4102
2010	55454767899.8758
2011	50060674337.1847
2012	53151905744.5979
2013	53638210678.5296
2014	58306382314.0342
2015	52591138047.4631
2016	54213237817.9158
2017	59420410058.0724
2018	60037169645.2743
2019	62121858662.52
2020	55344527700.1697
2021	72443926524.4743