11.   Low demand may keep stockpiles sufficient to handle even a late-winter freeze.

12.   Meanwhile, demand keeps growing.

13.   None were positive for the bacteria, but the demands have kept the lab open around the clock for the past several weeks, he said.

14.   Now the German currency has fallen enough to fuel export-driven growth, while weak demand at home keeps inflation under control.

15.   Sluggish demand has kept prices low.

16.   So far, strong demand has kept oil inventories surprisingly tight, offsetting the benefit of that extra production.

17.   So Baily is among the less optimistic of the productivity observers unless demand keeps rising rapidly.

18.   Still, traders and analysts stress that pent-up investor demand will likely keep bonds from falling far.

19.   Strong demand has kept differences in yield, or spread, between corporate bonds and benchmark Treasuries, at historically narrow levels, further lowering borrowing costs.

20.   Such summertime demand has kept natural gas stocks low and pushed prices higher, analysts say.