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


For 1999

Variable

 JAN. 

 FEB. 

 MAR. 

APR.

 MAY. 

 JUN. 

  JUL. 

 AUG. 

 SEP. 

 OCT. 

 NOV. 

 DEC. 

M

= CONSTRUCTION MATERIALS
   (EXCLUDE CEMENT & STEEL)

187.5

186.2

186.3

185.4

184.6

186.0

186.4

186.4

186.4

187.4

 187.3

187.5 

S

= STEEL PRICE INDEX

120.8

121.2

116.6

115.4

115.8

115.9

114.3

113.6

113.6

114.9

114.6

113.3

C

= CEMENT PRICE INDEX

161.5

168.2

169.1

170.0

170.0

167.6

167.6

167.6

167.6

167.6

167.6

167.9

G

= IRON SHEET PRICE INDEX

154.9

151.4

152.0

152.0

151.4

154.9

154.2

154.8

155.8

164.3

 162.0

162.7

I

= GENERAL CONSUMER PRICE INDEX OF 
   THAILAND

178.1

178.2

177.9

177.1

176.4

176.3

176.5

177.2

177.5

177.8

 178.1

 178.6

F

= HIGH SPEED DIESEL PRICE INDEX

117.9

112.2

119.6

136.2

136.8

132.4

141.8

150.3

160.6

166.4

165.2

172.4

A

= ASPHALT PRICE INDEX

85.2

83.0

83.0

83.0

83.0

83.0

83.0

101.4

117.7

127.4

127.4

127.4

E

= MACHINERY AND EQUIPMENT PRICE INDEX

157.0

157.0

155.7

155.5

155.0

154.8

154.8

154.7

155.0

155.6

154.4

154.4

GIP

= GALVANIZED IRON PIPE PRICE INDEX

228.8

228.8

228.8

228.8

209.7

217.9

215.2

215.2

223.4

225.7

226.1

223.4

AC

= ASBESTOS PIPE PRICE INDEX

120.3

120.3

120.3

120.3

120.3

120.3

120.3

120.3

120.3

120.3

 120.3

120.3

PVC

= PVC WATER PIPE PRICE INDEX

125.9

125.9

125.9

125.9

125.9

125.9

125.9

125.9

125.9

125.9

125.9

125.9

W

= INSULATED WIRE PRICE INDEX

149.9

149.9

149.9

149.9

149.9

149.9

149.9

149.9

149.9

149.9

149.9

160.6

PE

= HYDENSITY POLYETHYLENE PIPE PRICE INDEX  
   (HYDENSITY POLYETHYLENE)

142.0

142.0

142.0

142.0

142.0

142.0

142.0

142.0

142.0

142.0

 142.0

 142.0


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