อยากทราบวิธีการสร้างกราฟที่แสดงจำนวนนักเรียนที่มีเกรดเฉลี่ยอยู่ในช่วงเกรดนั้นๆ

(
SELECT '2.51 - 3.00' AS [GPA] , ISNULL(COUNT(*),0) AS [จำนวนคน]
	FROM Course AS C JOIN DataNisit AS D ON C.ID = D.ID
	WHERE D.GPA BETWEEN 2.51 AND 3.00
) UNION
(
	SELECT '3.01 - 3.49' AS [GPA] , ISNULL(COUNT(*),0) AS [จำนวนคน]
	FROM Course AS C JOIN DataNisit AS D ON C.ID = D.ID
	WHERE D.GPA BETWEEN 3.01 AND 3.49
) UNION
(
	SELECT '3.51 - 4.00' AS [GPA] , ISNULL(COUNT(*),0) AS [จำนวนคน]
	FROM Course AS C JOIN DataNisit AS D ON C.ID = D.ID
	WHERE D.GPA >= 3.51
)