Provide the average number of papers that are published in the journal named 'Information Sciences' annually.
'Information Sciences' is the FullName of journal; average = DIVIDE(COUNT(JournalId = 48), COUNT(Years))
SELECT CAST(COUNT(T2.JournalId) AS REAL) / COUNT(DISTINCT T2.Year) FROM Journal AS T1 INNER JOIN Paper AS T2 ON T1.Id = T2.JournalId WHERE T1.FullName = 'Information Sciences'