The metrocosm post links to this page on the Economist: http://www.economist.com/blogs/graphicdetail/2015/04/daily-chart-2 http://www.economist.com/blogs/graphi

The metrocosm post links to this page on the Economist: http://www.economist.com/blogs/graphicdetail/2015/04/daily-chart-2 http://www.economist.com/blogs/graphicdetail/2015/04/daily-c..., but unfortunately I am now hitting the paywall and don't have my subscription info handy :-/