Pacsal Antz (pascal antz <paantz@yahoo.fr>) has taken the SLAC PingER data for Jan-Nov 2012 and plotted it on a world map.
The metric is the 10th,25th,50th,75th,90th percentile for the (min-rtt, by day, by country). The legend indicates the background color choosen for the boxplot, regarding the 50th percentile value.