Show the average, minimum, and maximum capacity for all the cinemas opened in year 2011 or later.
return cinemas ;return year opened of #1 ;return #1 where #2 is at least 2011 ;return capacities of #3 ;return average of #4 ;return minimum of #4 ;return maximum of #4 ;return #5 ,  #6 ,   #7
['select', 'project', 'comparative', 'project', 'aggregate', 'aggregate', 'aggregate', 'union']