Line over Bars (Multiple Dimensions)

[#1]

Folks,

Please your help to solve this problem.

I have this combined chart with bars (Stacked) and line, in which the line represent the average of items per period.

However, the line is not being ploted over each bar,all the 3 points (years) seems to be ploted in one place. The line should be considering years and months.

Please see the files attached for better understanding.

I really appreciate your help!

[danielrozental]

Check this, a single dimension works better.