Year	constant 2010 US$
2008	6554466570.47068
2009	6361702482.58491
2010	6104026369.73149
2011	6540826363.70179
2012	6367019297.00372
2013	6631712282.72308
2014	7704903683.18413
2015	7926677099.78482
2016	8524272651.77814
2017	9476042576.45522
2018	9871972022.06088