Prices go up, consumption goes up too
Trouble with this is it's based on faulty logic.
Alcoholic drink prices are 20% higher now than in the 1980s even adjusting for inflation. Yet drinking has increased anyway.
The campaigners argue that we should take wealth into account. By saying we are wealthier and hence, even though it's more expensive, we can still afford it. However a bottle of wine is 3 quid, everyone can afford it. Making it 3.3 quid does not make it unaffordable.
If it cost 1.5 I would not drink 2 bottles instead of 1.
If it cost 6 quid, I would not drink half a bottle instead of 1.
Once we can afford the maximum amount of booze we can drink, it makes no difference how wealthy we are. Bill Gates cannot drink a million bottles of wine a day just because he can afford it.
So calculating an affordability index just to get a correlation between price and consumption is nonsense past the point at which people can afford it.
It's not the causal link, the causal link is bored people, stuck in their houses, with nothing to do but watch TV reality shows. I find UK mind numbing to visit. It's like everywhere is shut, you can shop till you drop until 8pm then at night the streets become a no go zone, with police everywhere and only youths desparate for casual sex prepared to go out and run the gauntlet of CCTV's police pubs and clubs.