Material price changes from July to August 2006

Percent changes from July to August 2006/ August 2005 to August 2006

Gasoline — -2.2 / +20.9

No. 2 Diesel fuel — +6.1 / +26.6

Crude petroleum — -1.9 / +15.7

Plastic construction products — +0.2 / +20.1

Lumber and plywood — -3.8 / -6.1

Steel mill products — +1.2 / +23.3

Aluminum mill shapes — +0.1 / +15.6

Copper and brass mill shapes — -2.4 / +81.0

Fabricated structural metal products — +0.7 / +7.5

Cement — +0.3 / +11.0

Concrete products — 0.0 / +10.4

Asphalt felts and coatings — +1.2 / +9.2

Gypsum products — +2.9 / +21.2

Iron ore — -0.4 / +13.9

Iron and steel scrap — -11.2 / +20.1

Copper base scrap — 0.0 / +75.2

Construction sand, gravel, and crushed stone — +1.5 / +10.2

Construction machinery and equipment — -0.1 / +3.2

Tire, tube, thread, etc. — -0.2 / +7.2

Heavy motor trucks — +0.3 / +2.9

Truck trailers — +1.2 / +5.7