Material price changes from November to December 2006

Percent changes from November to December 2006/ December 2005 to December 2006

Gasoline β€” +1.4/ +1.8

No. 2 Diesel fuel β€” +2.9/ +2.3

Crude petroleum β€” +5.0/ -0.1

Plastic construction products β€” -0.3/ -0.6

Hardwood lumber β€” -0.9/ -1.9

Plywood β€” +1.2/ -7.6

Steel mill products β€” -0.4/ +11.6

Aluminum mill shapes β€” +0.1/ +12.4

Copper and brass mill shapes β€” -1.6/ +44.3

Fabricated structural metal products β€” +0.1/ +5.3

Cement β€” 0/ +10.4

Concrete products β€” 0/ +7.9

Asphalt felts and coatings β€” -0.5/ +3.0

Gypsum products β€” -1.9/ +5.4

Iron ore β€” -5.8/ +7.5

Iron and steel scrap β€” +3.3/ +2.8

Copper base scrap β€” -1.2/ +47.3

Construction sand, gravel, and crushed stone β€” -0.3/ +9.3

Construction machinery and equipment β€” 0/ +3.4

Tire, tube, thread, etc. β€” +0.1/ +5.4

Light motor trucks β€” -0.5/ +2.2

Heavy motor trucks β€” +0.3/ +3.6

Truck trailers β€” -0.2/ +4.8