How many eateries got highest inspection in 2013?
eateries got highest inspection score in 2013 refer to business_id from inspections where score = 100 and year(date) = 2013;
SELECT COUNT(DISTINCT business_id) FROM inspections WHERE STRFTIME('%Y', `date`) = '2013' AND score = ( SELECT MAX(score) FROM inspections WHERE STRFTIME('%Y', `date`) = '2013' )