Excel - Word Mailmerge

Hi guys,

I have been working with quite simple Excel - Word mail merges but now I'm stuck.
I have a list of external examiners who cover a varying amount of units and I need to merge this data for each external into separate tables in one Word document.

I have put a very simple example of how the data is set out in Excel and how I would like to merge the data in Word.

My problem is the externals have different amounts of units, so how do I make Word push the data to the next table.

Cheers