Thanks for that Prelim_P. I took a look at their website and...

Thanks for that Prelim_P.
I took a look at their website and found their timeline history. --> Link
According to them, they kicked off in 1934 and also according to them they surpassed 100 employees in 2003.
Using that as a basis, they might have around 120 employees by now.
Taking away secretarial, management, etc etc I'd estimate say 100 staff at the coalface within their business.
Assuming I'm out 100%, lets say 200 staff at the coalface including contract staff.
200 staff working 2000 Hrs per annum = 400,000 man-hours per year
Let's say all staff are 100% efficient
Also assume they do in fact have 1,000,000,000 deliveries to make each year, delivering whatever it may be (considering their services ---> Link ).
1,000,000,000 deliveries per annum using 400,000 man-hours per annum = 2500 deliveries per hour
2500 deliveries per hour = 1 delivery every 1.44 seconds

Sounds like one hell of a team.