How many states have a college with more students than average?
return colleges ;return students of  #1 ;return average of  #2 ;return number of  #2 for each  #1 ;return #1 where #4 is  higher than #3 ;return states of  #5 ;return number of  #6
['select', 'project', 'aggregate', 'group', 'comparative', 'project', 'aggregate']