The Journal of Commerce--The Cass Freight Index for U.S. domestic shipments inched up 0.7 percent in December over the previous year, signaling new stability in shipping demand after the market slipped downward during the fall.

The closely watched shipments measure defied usual seasonal patterns by remaining even in December with November, and the December reading was up nearly 15 percent over the same month two years ago and the highest reading for December since 2007.
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