By end of the school year he meant that school usually goes from August/September to May/June for the US and other countries, so the results should be similar i

By end of the school year he meant that school usually goes from August/September to May/June for the US and other countries, so the results should be similar if that is the case. However it is also a possibility that Facebook has grown large enough that the amount of new users is dwindling because it has already signed up the majority of willing users.