Year	current US$
2002	15475287331.1812
2003	20178390021.9969
2004	23434544011.9435
2005	32601596779.679
2006	42163903082.4294
2007	50489900169.7498
2008	61097445232.0229
2009	45801100345.6878
2010	55495947937.4979
2011	41647853852.4246
2012	65418044352.0941
2013	57797465316.0784
2014	49358922227.6181
2015	43432275737.9457
2016	44469299617.2839
2017	58846532781.2831
2018	64611415552.4597
2019	58527187760.4521
2020	45053515006.8648
2021	33096515120.0965