I need to graph the amount of concrete poured against the planned amount for
each week over about 60 weeks. When I create a Column Chart in Excel 2007
the bars in the chart are thin lines, I have tried to format the Data Series
and remove the gap width but this does not seem to have much effect.

I've also tried increasing the thickness of the border however this just
looks stupid and makes the data overlap.

Is there any way to fix this?

Cheers