It is news to me that the numbers could be this cooked. I, perhaps naively, thought that trade numbers would betray any meaningful difference in GDP versus the

It is news to me that the numbers could be this cooked. I, perhaps naively, thought that trade numbers would betray any meaningful difference in GDP versus the reported figure. I am in the top 1% of news consumption. This is real news if the numbers are truly this different. My main question on the graph relates to China. How much could pollution influence the makeup of this data?