WASHINGTON -- As the Bush administration struggles to convince lawmakers that its Iraq war strategy is working, it has stopped reporting to Congress a key quality-of-life indicator in Baghdad: how long the power stays on.

Ryan Crocker, the U.S. ambassador to Iraq, told the Senate Foreign Relations Committee last week that Baghdad residents could count on only "an hour or two a day" of electricity. That's down from an average of five to six hours a day earlier this year.

But that piece of data has not been sent to lawmakers for months because the State Department, which prepares a weekly "status report" for Congress on conditions in Iraq, stopped estimating in May how many hours of electricity Baghdad residents typically receive each day.