Law of Increasing Returns UK Edition?

Very unique Covid mortality pattern makes one speculate.

Remember the empirical Law of Increasing Returns (fewer Covid “vaccine” injections causing increasing number of Covid-attributed deaths) I observed on the purest example of Japan (“Japan Jabbination Progress”, Feb. 2, 2023)?

Another most peculiar example attracted my attention - the UK:

I display the US Covid mortality numbers for scale/comparison. Here’s my observation: since Oct. 2021, the Covid death waves work as clockwork, every three months, strictly in the middle of a calendar season (mid-October, mid-January, mid-April, mid-July and so on).

As the UK stopped reporting the jabbination stats on ourworldindata.org:

it is hard to put a finger on the booster campaigns or deduce any relationship between the number of the jabs and the Covid-attributed deaths, although the last that could be observed were the booster pushes in mid-spring and the smaller in mid-summer of 2022.

But else, how could one explain these extremely regular Covid-attributed death waves in the UK? And why we don’t see them in other locales, with the exception of Japan? And Denmark? “Something is rotten in the state of Denmark”:

And France:

In any case, the seasonality of the corona virus infectivity has acquired a totally new unexpected meaning, nowhere as clearly as in the UK - every three months like clockwork.