Hmph, It seems that there are only two countries on that list for Mathematics with the same degree of cardinality to the U.S... Russia and Japan. These I would

Hmph, It seems that there are only two countries on that list for Mathematics with the same degree of cardinality to the U.S... Russia and Japan. These I would find to be more appropriate a comparison than say, a city to a country. It seems disingenuous to label Shanghai as China, as if it was representative of the whole, and then compare it to the U.S... They are supposedly comparing states, but I think there are more appropriate comparisons that could be made.