Answering that specific question, 98 jumped up 16% this spring and... that's it. Except for that, it's an ordinary curve compared to, say, 5 years ago. And that's mostly the result of actually bombing the refineries.
The only reasonable definition of "work" is "stop the thing that motivated the sanction from happening". With that definition, sanctions rarely work (or if they do, not in a very effective way). Russia is still at war with Ukraine. Iran is still developing nuclear weapons. North Korea did develop nuclear weapons.
Let's not kid ourselves. Russia is still killing Ukrainians right now. They're still occupying Ukraine's land right now. Is this what "work" looks like in your dictionary?
> Ask a russian about the price of fuel.
Oh I see. In your dictionary a working solution is not to stop the war or get lands back, but to ensure average Russian people suffer. Never mind then.
