For each headquarter, what are the headquarter and how many companies are centered there?
SELECT headquarters ,  count(*) FROM company GROUP BY headquarters
SELECT headquarters ,  count(*) FROM company GROUP BY headquarters
[{'Headquarters': 'Brazil', 'count(*)': 1}, {'Headquarters': 'China', 'count(*)': 2}, {'Headquarters': 'Netherlands', 'count(*)': 1}, {'Headquarters': 'UK', 'count(*)': 2}, {'Headquarters': 'USA', 'count(*)': 4}]