For a 4 cylinder Honda civic (2,000); what would you say is expectable gas mileage for mixed driving conditions; both in town and highway?

I have to drive a bit to work every day and am trying to figure what my Honda Civic should get in gas mileage. Do you have any input? If I find out I am getting 25 mpg for mixed driving conditions; am I too low for a Honda Civic?
Update: By the way: This is not a hybrid car. It is burning straight gasoline. So: What should I expect in mpg?
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