Year	current US$
2007	271032442644
2008	273132795630
2009	176526330750
2010	192606110606
2011	193962530814
2012	202172951364
2013	201402555088
2014	204669171254
2015	203486347048
2016	200124924757
2017	181483671940
2018	184291082924
2019	185461953407
2020	167112540840
2021	198458852271
2022	196771831255