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


For 1997

Variable

 JAN. 

 FEB. 

 MAR. 

APR.

 MAY. 

 JUN. 

  JUL. 

 AUG. 

 SEP. 

 OCT. 

 NOV. 

 DEC. 

M

= CONSTRUCTION MATERIALS
   (EXCLUDE CEMENT & STEEL)

163.4

162.8

163.6

163.4

163.6

163.8

164.6

172.6

174.5

176.1

 177.9

178.5 

S

= STEEL PRICE INDEX

110.8

110.2

111.4

112.1

111.4

112.2

116.9

128.2

134.4

138.1

134.8

137.3

C

= CEMENT PRICE INDEX

106.5

106.5

106.5

106.7

106.7

106.7

106.7

119.5

119.5

119.5

133.3

133.3

G

= IRON SHEET PRICE INDEX

128.1

129.3

125.5

125.5

124.8

133.3

142.2

177.9

178.1

177.2

 177.2

189.3

I

= GENERAL CONSUMER PRICE INDEX OF 
   THAILAND

158.3

159.1

159.8

160.3

160.8

161.1

162.2

166.5

167.3

168.5

 170.0

 170.0

F

= HIGH SPEED DIESEL PRICE INDEX

148.5

135.5

136.7

139.3

137.8

134.1

130.6

144.4

157.7

165.3

175.7

178.1

A

= ASPHALT PRICE INDEX

86.8

86.8

86.8

86.8

86.8

86.8

86.8

88.0

89.2

93.6

100.8

100.8

E

= MACHINERY AND EQUIPMENT PRICE INDEX

126.3

125.4

125.1

125.0

125.0

125.7

125.7

129.6

130.9

133.7

139.7

144.2

GIP

= GALVANIZED IRON PIPE PRICE INDEX

163.3

163.3

163.3

163.3

163.3

163.3

163.3

165.3

165.3

165.3

165.3

165.3

AC

= ASBESTOS PIPE PRICE INDEX

117.1

117.1

117.1

117.1

117.1

117.1

117.1

120.3

120.3

120.3

 120.3

120.3

PVC

= PVC WATER PIPE PRICE INDEX

122.4

122.4

122.4

122.4

122.4

122.4

122.4

125.9

125.9

125.9

125.9

125.9

W

= INSULATED WIRE PRICE INDEX

105.3

105.3

105.3

105.3

105.3

105.3

105.3

133.2

133.2

133.2

133.2

133.2

PE

= HYDENSITY POLYETHYLENE PIPE PRICE INDEX  
   (HYDENSITY POLYETHYLENE)

138.2

138.2

138.2

138.2

138.2

138.2

138.2

142.0

142.0

142.0

 142.0

 142.0


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