instruction: Popularity of JS, R, VBA, SQl, Python, PHP (% of all questions, by Month) [with Chart].
response: SELECT (YEAR(p.CreationDate) * 100) + MONTH(p.CreationDate) AS yrMonth, COUNT(CASE WHEN t.TagName LIKE '%vba%' THEN 1 ELSE NULL END) AS "vba" FROM PostTags AS pt JOIN Posts AS p ON p.Id = pt.PostId JOIN Tags AS t ON t.Id = pt.TagId WHERE YEAR(p.CreationDate) >= 2018 AND p.PostTypeId = 1 GROUP BY (YEAR(p.CreationDate) * 100) + MONTH(p.CreationDate)