| | Index | Gray range 1 (poor) | Gray range 2 (middle) | Gray range 3 (good) | Gray range 4 (excellent) |
| | C1 | f (-,-,5,9) | f (5,9,-,13) | f (9,13,-,17) | f (13,17,-,-) | | C2 | f (-,-,15,35) | f (15,35,-,55) | f (35,55,-,75) | f (55,75,-,-) | | C3 | f (-,-,50,70) | f (50,70,-,90) | f (70,90,-,110) | f (90,110,-,-) | | C4 | f (-,-,15,25) | f (15,25,-,35) | f (25,35,-,45) | f (35,45,-,-) | | C5 | f (-,-,1,2) | f (1,2,-,3) | f (2,3,-,4) | f (3,4,-,-) | | C6 | f (-,-,125,175) | f (125,175,-,225) | f (175,225,-,275) | f (225,275,-,-) | | C7 | f (65,75,-,-) | f (55,65,-,75) | f (45,55,-,65) | f (-,-,45,55) | | C8 | f (-,-,25,35) | f (25,35,-,45) | f (35,45,-,55) | f (45,55,-,-) | | C9 | f (-,-,6,8) | f (6,8,-,10) | f (8,10,-,12) | f (10,12,-,-) | | C10 | f (-,-,65,75) | f (65,75,-,85) | f (75,85,-,95) | f (85,95,-,-) | | C11 | f (85,95,-,-) | f (75,85,-,95) | f (65,75,-,85) | f (-,-,65,75) | | C12 | f (-,-,30,50) | f (30,50,-,70) | f (50,70,-,90) | f (70,90,-,-) | | C13 | f (-,-,12.5,27.5) | f (12.5,27.5,-,42.5) | f (27.5,42.5,-,57.5) | f (42.5,57.5,-,-) | | C14 | f (-,-,1.5,2.5) | f (1.5,2.5,-,3.5) | f (2.5,3.5,-,4.5) | f (3.5,4.5,-,-) | | C15 | f (-,-,15,25) | f (15,25,-,35) | f (25,35,-,45) | f (35,45,-,-) | | C19 | f (-,-,200,400) | f (200,400,-,600) | f (400,600,-,800) | f (600,800,-,-) | | C20 | f (-,-,45,55) | f (45,55,-,65) | f (55,65,-,75) | f (65,75,-,-) | | C23 | f (-,-,0.75,2.25) | f (0.75,2.25,-,3.75) | f (2.25,3.75,-,5.25) | f (3.75,5.25,-,-) | | C24 | f (-,-,0.5,1.5) | f (0.5,1.5,-,2.5) | f (1.5,2.5,-,3.5) | f (2.5,3.5,-,-) | | C25 | f (45,55,-,-) | f (35,45,-,55) | f (25,35,-,45) | f (-,-,25,35) | | C26 | f (-,-,17.5,22.5) | f (17.5,22.5,-,27.5) | f (22.5,27.5,-,32.5) | f (27.5,32.5,-,-) | | C27 | f (405,435,-,-) | f (375,405,-,435) | f (345,375,-,405) | f (-,-,345,375) | | C29 | f (0.125,0.175,-,-) | f (0.075,0.125,-,0.175) | f (0.025,0.075,-,0.125) | f (-,-,0.025,0.075) | | C30 | f (-,-,96.5,97.5) | f (96.5,97.5,-,98.5) | f (97.5,98.5,-,99.5) | f (98.5,99.5,-,-) | | C31 | f (-,-,10,20) | f (10,20,-,30) | f (20,30,-,40) | f (30,40,-,-) | | C34 | f (-,-,200,400) | f (200,400,-,600) | f (400,600,-,800) | f (600,800,-,-) | | C36 | f (-,-,7.5,12.5) | f (7.5,12.5,-,17.5) | f (12.5,17.5,-,22.5) | f (17.5,22.5,-,-) | | C40 | f (-,-,15,25) | f (15,25,-,35) | f (25,35,-,45) | f (35,45,-,-) | | C41 | f (-,-,4.5,7.5) | f (4.5,7.5,-,10.5) | f (7.5,10.5,-,13.5) | f (10.5,13.5,-,-) |
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