Tender Planning workload per year, per Planner ??

Just wondering what you lot would reasonably expect a Tender Planner to bid for over a one year period ie £100M, £200M etc etc ????

Only interested in European (esp UK) Construction companies. (ie not a South African diamond mining tender planner ;-)

The reason I ask is that there are currently 2 of us here, and as well as providing site support (such as progress updating), we have just covered over £125 million worth of tenders in ONE MONTH!

Thanks.