all spooled files subtotals by year/month/#splfs

spooled files subtotals

SELECT current server as Sysname, YEAR(Create_Timestamp) AS Year_Created
       ,MONTH(Create_Timestamp) AS Month_Created
       ,COUNT(System) AS Spooled_Files
    FROM Qsys2.Output_Queue_Entries_Basic
    GROUP BY Grouping Sets (
                (
                    MONTH(Create_Timestamp)
                    ,YEAR(Create_Timestamp)
                ) 							            --  "Detail"
                ,(YEAR(Create_Timestamp)) 	--  subtotal
                ,() 						            --  Grand Total
            )
    ORDER BY Year_Created            ;