Material price changes from December 2006 to January 2007

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

Gasoline — -6.3/ -9.7

No. 2 Diesel fuel — -10.9/ -8.2

Crude petroleum — -9.2/ -14.3

Plastic construction products — -1.2/ -3.4

Hardwood lumber — +0.4/ -1.0

Plywood — +0.9/ -7.6

Steel mill products — -0.2/ +9.3

Aluminum mill shapes — +1.9/ +11.2

Copper and brass mill shapes — -4.5/ +34.9

Fabricated structural metal products — +0.2/ +4.9

Cement — +2.5/ +6.9

Concrete products — +1.2/ +5.2

Asphalt felts and coatings — +3.0/ +4.4

Gypsum products — -0.1/ +3.2

Iron ore — -0.2/ +1.4

Iron and steel scrap — +7.3/ +17.5

Copper base scrap — -6.9/ +29.9

Construction sand, gravel, and crushed stone — +2.3/ +8.3

Construction machinery and equipment — +0.7/ +2.7

Tire, tube, thread, etc. — -0.3/ +5.6

Light motor trucks — -1.5/ +0.3

Heavy motor trucks — +1.1/ +4.8

Truck trailers — 0/ +4.8