Just for coherence, I stick here to data by registration date in order to match the analysis done by Swiss Re Here the different estimates for cumulative excess for the UK There is a reason why OWID and The Economist are much higher than say CMI or 13-19 Mortality Trends 2/

The reason is that they both rely on trends derived from 15-19 data The UK is one of those countries (Germany is another) where the flu seasons made for a very skewed 15 and 19 dataset with 15 very high and 19 very low This impacts (I think artificially) the trend analysis 3/