Columns and (XY)Scatter in same chart

Hi,

I want to create one chart with columns and a scatter line in the same graph.
I need two y-axis of different scales.
The x-axis should be a time-axis. The columns should appear at the end of the year and the scatter points all through the year.
Please look at the attachement for an example. The columns refer to the left y-axis, the line to the right y-axis.

I hope it's comprehensive. Thank you for your help.

Alexandre