Material price changes from February 2007 to March 2007

Percent changes from February 2007 to March 2007/ March 2006 to March 2007

Gasoline — +17.4/ +6.0

No. 2 Diesel fuel — +13.8/ +6.6

Crude petroleum — -1.3/ -7.5

Plastic construction products — -0.3/ -2.6

Hardwood lumber — -0.4/ -1.6

Plywood — +1.0/ -5.4

Steel mill products — +2.3/ +13.1

Aluminum mill shapes — +0.3/ +7.7

Copper and brass mill shapes — +1.7/ +25.5

Fabricated structural metal products — +0.4/ +5.1

Cement — +0.9/ +4.6

Concrete products — +0.8/ +5.3

Asphalt felts and coatings — +0.3/ +4.5

Gypsum products — 0/ -4.0

Iron ore — 0/ -5.9

Iron and steel scrap — +18.4/ +40.3

Copper base scrap — +8.2/ +27.5

Construction sand, gravel, and crushed stone — +0.4/ +9.5

Construction machinery and equipment — +0.2/ +2.2

Tire, tube, thread, etc. — +0.1/ +5.3

Light motor trucks — -1.1/ +0.2

Heavy motor trucks — 0/ +4.3

Truck trailers — +0.4/ +4.3