Could it just possibly be that the 70% who see things going well are part of the 77% who have had no contact with the coalition forces?

What's wrong with that? The last time I looked the most positive feelings about any police force are among those that have no contact with them. The fact that 77% of the population have had no contact with our forces seems to be a good thing.

And how is it 70% think things are going well and nearly as many think that jobs and electricity are a problem?

Works the same way here. People are always concerned with jobs and public services until they are perfect. Maybe they are satisfied that there are more jobs and better electric services than there were under Saddam. This is true you know.