A little tongue in cheek, maybe, but I wonder which span of years will be looked back upon as being those where it was easiest to get a pile of top marks, in general? Might it be those just past where a DC could resit and resit each module til they got the 'right mark'? Those where parents could do a good slab of the modular work at home? Or maybe those years up until a couple of years ago, when there was less scrutiny of the ever rising grades?