South Korea's lead in speed

With the rapid spread of mobile communication and smartphones and the high proportion of data traffic accounted for by video, people and policymakers all around the world are coming to appreciate the importance of  speed in an internet connection.  Generally, the faster the better, as emphasized in numerous earlier posts on this blog.
Akamai, a leading industry monitor of the state of the internet, has published a web page that allows comparisons across countries over time.   As shown in the accompanying screen capture (click on the graphic for a larger version), Korea still leads the world in average connection speed (note that the southern half of the Korean peninsula is the only country shaded green on this world map!)
For comparison purposes, the second graphic here shows trends over time for China, the UK, the U.S. and South Korea, from Q3 of 2007 through the end of 2015.