Script to track Database Growth

Use below script to track database growth over a period of time:

WITH C AS (
SELECT 
RN = ROW_NUMBER() OVER( ORDER BY Backup_Start_Date DESC),
BackupDate = CONVERT(VARCHAR(10), Backup_Start_Date, 111), 
SizeInMB = FLOOR(Backup_Size/1024000) 
FROM msdb.dbo.BackupSet 
WHERE Database_Name = DB_NAME() -- put your databaseName here
AND Type = 'd'
) SELECT C.* , Diff = SizeInMB - (SELECT SizeInMB FROM C C2 WHERE RN = C.RN + 1) FROM C ORDER BY 1 ASC