Sorry - blame the nuances of postings!!!! Yes I deliberately picked a low (IMO) figure on the drinking problem so as not to raise controversy - left to my own devices I'd guess the figure was nearer 90% - but it was only to illustrate a point.
And my point about cannibis was that - notwithstanding alledged psychosis, progression to 'harder' drugs' - I'm sure the potential for social harm is fairly low - but again I'm no expert.
Finally (as a fellow figures acolyte) you don't need a precise figure to extrapolate that duty paid by a sizeable majority can cover the problems visited on a minority BUT I stress I was only trying to put forward a viewpoint rather than quantify with figures (that I don't have!!!)
Anyway I'm off t'boozer now..........really.......
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