Material price changes from November 2008 to December 2008

Percent changes from November 2008 to December 2008/ November 2007 to November 2008

Gasoline – -26.1/ -51.4

No. 2 Diesel fuel — -23.7 / -36.9

Crude petroleum — -31.0 / -57.9

Plastic construction products — -1.5 / +3.3

Hardwood lumber — -1.9 / -7.0

Plywood — -1.1 / -5.0

Steel mill products — -12.4 / +5.3

Aluminum mill shapes — -4.9 / -5.9

Copper and brass mill shapes — -9.6 / -24.3

Fabricated structural metal products – -0.9 / +12.6

Cement — -0.6 / -0.5

Concrete products — 0.0 / +4.2

Asphalt felts and coatings – -1.1 / +51.7

Gypsum products — +0.1 / +7.3

Iron ore – 0.0/ +12.1

Iron and steel scrap — +13.8 / -40.7

Copper base scrap — -5.1 / -52.7

Construction sand, gravel, and crushed stone – 0.0 / +6.6

Construction machinery and equipment — +0.2/ +5.3

Tire, tube, thread, etc. — -0.7/ +10.9

Light motor trucks — +0.1 / +2.3

Heavy motor trucks — +0.2/ +3.6

Truck trailers — -0.4 / +4.8