Year	current US$
1999	36172446995.509186
2000	36266354916.69512
2001	34563859564.64925
2002	35353348971.51114
2003	41233084167.45594
2004	47900452339.40579
2005	49203355717.94055
2006	53852200551.4325
2007	64843972359.96579
2008	73303608254.49141
2009	74568525240.35083
2010	87198991825.05159
2011	75499588536.44524
2012	79914175546.05434
2013	77568166172.55612
2014	85250476713.2265
2015	87085749551.37436
2016	86577051878.32425
2017	101103083697.1696
2018	111815404880.96149
2019	124024234909.95158