Material price changes from November 2007 to December 2007

Percent changes from November 2007 to December 2007/ December 2006 to December 2007

Gasoline β€” -8.0/+37.1

No. 2 Diesel fuel β€” -8.4/ +33.9

Crude petroleum β€” -2.4/+52.4

Plastic construction products β€” +0.6/ +0.3

Hardwood lumber β€” -1.1/ -3.3

Plywood β€” -0.1/ +7.2

Steel mill products β€” +0.8/ +1.0

Aluminum mill shapes β€” -0.2/ -1.7

Copper and brass mill shapes β€” -4.4/ -3.8

Fabricated structural metal products β€” +0.5/ +2.6

Cement β€” 0/ +3.3

Concrete products β€” +0.1/ +3.3

Asphalt felts and coatings β€” +0.8/ -2.5

Gypsum products β€” -0.9/ -22.2

Iron ore β€” 0/ +1.3

Iron and steel scrap β€” +5.3/ +30.4

Copper base scrap β€” -3.7/ +1.2

Construction sand, gravel, and crushed stone β€” +0.4/ +8.6

Construction machinery and equipment β€” 0/ +2.2

Tire, tube, thread, etc. β€” +0.2/ +2.6

Light motor trucks β€” -1.3/ -0.9

Heavy motor trucks β€” 0/ +2.9

Truck trailers β€” +0.1/ +2.3