Return to Answer

There's a more sophisticated example used to illustrate the pitfall at that last link, but simply in the limit case where everyone is vaccinated, the yellow column reaches 100% (as all the cases are by necessity among the vaccinated) so it conveys no useful information about how good (or bad) the vaccine is.

As for the yellow column, it's actually not very useful in itself, as explained here (by an expert):

This is the wrong metric to look at," she wrote in a blog post, explaining that it excludes the wider population and, therefore, represents the "probability of being vaccinated given you are sick" rather than "the probability of being sick given you are vaccinated.

They do match the uncolored columns in the infographic. However, the colored "conclusion" column data isn't found at that precise link given as source/reference. The yellow column from the infographic is easy to reproduce as positive_above_20_days_after_2nd_dose / (positive_above_20_days_after_2nd_dose + Sum_positive_without_vaccination). The weekly sums across age groups are trivially verified as correct as well. But I'm not sure whey they sourced the pink column from, which is the basis for [their] comparison(s).

They do match the uncolored columns in the infographic. However, the colored "conclusion" column data isn't found at that precise link given as source/reference. The yellow column from the infographic is easy to reproduce as positive_above_20_days_after_2nd_dose / (positive_above_20_days_after_2nd_dose + Sum_positive_without_vaccination). The weekly sums across age groups are trivially verified as correct as well. But I'm not sure whey they sourced the pink column from, which is the basis for [their] comparison(s). The raw data for the number persons vaccinated in each age group is given at another link in the same database, but this link is not cited in the infographic; however (a) this is not cumulative per time period so a fair bit of summing is need to get some cumulative totals and (b) there are no population totals for each group, so you can't derive the percentage of vaccinated just from there even after you sum.