Year	current US$
2002	4635608555.686399
2003	5285880612.148295
2004	7208752387.724389
2005	10275043781.408495
2006	11496406184.784426
2007	16418319977.319157
2008	25870974660.14914
2009	30086198764.683422
2010	23662041927.31421
2011	29504001447.81351
2012	34165589909.20042
2013	34617924621.31118
2014	37362059352.732414
2015	25528682845.45871
2016	13830515985.516476
2017	17127299174.167349
2018	13661306397.679169
2019	12557628119.36777
2020	12848257810.831543
2021	17582201885.36111
2022	27411216560.09622
2023	22547318751.07694