I like these sort of calculations: how many months might I have spent standing in postoffice/tax offices/supermarket queues/waiting for a tyre to be changed; how many months in bed - or years, rather; how much time drinking tea? how many weeks listening to The Four Seasons while waiting to be connected to insurance companies/banks/electricity providers, etc.
Then there are the more interesting calculations: how many times must I have walked down our road into town and back? in thirteen years - say four times a week, on average - 52x4 =208, thirteen years =2,704, probably round it up to 3,000. Considering the previous house-owners reckoned they had done the meander around fifteen times in eighteen years (they were very fond of their BMW) - I think we're doing pretty well, walking wise.
And onto Mark's cakes, at least since I've known him - twenty-three years.
Probably on average (very vague calculation following) he makes a cake twice a week.
104 cakes a year x twenty-three years = 2,392 . . . cakes. Not to mention all the bread, Parkin, flapjacks, etc.
This was one of his best, but then I often say that - they are nearly always amazing.
The only two failures I can recall: a beetroot cake and a Neanderthal version of a Battenburg.