fixing x-axis for column chart

[sophiereid]

All,

I have 2 chart types in one chart: column and line. i have formatted to position x-axis "On tick marks". It works well with the line graph but for the column graph i don't have the result that I am looking for. I have attached my data here. i want the column to start in the x-axis marks, for this particular case, to start at 0, 3, 5, etc. and not these points to be the center. I hope someone can help me figure this out

Thanks!