Combo chart with two lines and the same value

[Matthew1]

Is it possible to replicate the Excel chart from below? It has two lines, same value (£), but different scale as I'm comparing the quarterly trend between onecompany and the rest of the market combined.

This is based on data arranged in tabular form.

[jthomson]

You can do it with one as a line and the other as bars, but I don't think it's presently possible to have two lines with differing axes without real awkward workarounds