Variables of Contract Price Escalation Factors (K)
(1987=100)


Year  2021

Variable
JAN.
FAB.
MAR.
APR.
MAY.
JUN.
JUL.
AUG.
SEP.
OCT.
NOV.
DEC.
M
CONSTRUCTION MATERIALS(EXCLUDE CEMENT & STEEL)
294.3
295.7
297.1
299.0
301.5
301.9
301.8
302.4
302.4
304.8
305.9
305.9
S
STEEL PRICE INDEX
239.0
239.0
240.6
258.7
278.5
277.1
257.3
264.3
264.3
275.9
277.3
266.9
C
CEMENT PRICE INDEX
183.1
183.0
183.0
184.1
184.1
184.1
184.2
184.2
184.2
186.6
190.5
190.2
G
IRON SHEET PRICE INDEX
365.0
365.0
380.2
403.0
517.1
517.1
517.1
539.9
539.9
539.9
539.9
524.6
I
GENERAL CONSUMER PRICE INDEX OF THAILAND
256.3
253.9
254.5
258.1
255.7
256.6
256.3
255.9
259.9
261.9
262.6
261.6
F
HIGH SPEED DIESEL PRICE INDEX
421.4
448.3
458.1
447.7
469.4
484.8
496.6
493.7
505.1
511.8
507.5
489.9
A
ASPHALT PRICE INDEX
471.9
471.3
501.5
537.1
505.8
502.6
506.6
504.6
495.4
489.8
518.6
516.2
E
MACHINERY AND EQUIPMENT PRICE INDEX
357.4
357.4
357.4
357.4
357.4
357.4
357.4
357.4
357.4
357.4
357.4
357.4
GIP
GALVANIZED IRON PIPE PRICE INDEX
445.4
441.5
453.8
465.7
520.1
524.1
520.1
532.1
532.1
536.0
536.0
532.1
AC
ASBESTOS PIPE PRICE INDEX
152.2
152.2
152.2
152.2
152.2
152.2
152.2
152.2
152.2
152.2
152.2
152.2
PVC
PVC WATER PIPE PRICE INDEX
144.8
148.1
149.6
151.2
151.2
148.9
146.5
146.5
146.5
146.5
146.5
158.0
W
INSULATED WIRE PRICE INDEX
327.9
335.8
335.8
335.8
335.8
335.8
335.8
335.8
335.8
335.8
335.8
335.8
PE
HYDENSITY POLYETHYLENE PIPE PRICE INDEX
208.7
223.6
223.6
223.6
223.6
223.6
223.6
223.6
223.6
223.6
223.6
223.6

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