Since it is hard (almost impossible) to get individual country representation for the colleges mentioned…there is at least one school that actually publishes the data. And you can take MIT as a proxy for the other schools: http://web.mit.edu/iso/stats_14-15/total.shtml)
You will notice only 1 student from Germany in the college…sorry to say…there are even better representation from third-world countries in Africa and South America than Germany…