Show different locations and the number of performances at each location.
SELECT LOCATION ,  COUNT(*) FROM performance GROUP BY LOCATION
SELECT LOCATION ,  COUNT(*) FROM performance GROUP BY LOCATION
[{'Location': 'Bell Centre', 'COUNT(*)': 1}, {'Location': 'Madison Square Garden', 'COUNT(*)': 1}, {'Location': 'Scotiabank Place', 'COUNT(*)': 1}, {'Location': 'TD Garden', 'COUNT(*)': 1}, {'Location': 'Verizon Center', 'COUNT(*)': 2}]