What is the average number of less severe crimes reported a day in February of 2018?
day in February of 2018 refers to date LIKE '2/%/2018'; less severe crime refers to index_code = 'N'; average = Divide (Count(case_number), 28)
SELECT CAST(COUNT(T2.case_number) AS REAL) / 28 FROM IUCR AS T1 INNER JOIN Crime AS T2 ON T2.iucr_no = T1.iucr_no WHERE T2.date LIKE '2/%/2018%' AND T1.index_code = 'N'