My gas(for heating, not petrol) has literally just gone up 600%. You look at these numbers posted in the media and you think "what are they on about? What 8.5%?".
If 100% of the average consumer budget was spent on heating gas, a 600% increase of heating gas would be a 600% inflation boost.
At the end of the day, we each have our own inflation #. Some may be lower, some higher.
NYT made a calc to try and show some of this: https://www.nytimes.com/interactive/2022/05/08/business/econ...
(In fact, one question is "do you heat your home with oil", and a Yes answer seems to jump your score up 3% or so)
Though average food/fuel prices have also gone up quite a lot, so the total monthly expenses have gone up more around 20%, which is a lot more closer to actual inflation in my region.
Yes the number overall is tiny - but it still means that whatever I used to spend on heating/hot water, is now 6x higher.