the left axis on this chart
I agree.
Why are the German länder grouped into three regional buckets rather than using the official statistical regions? The grouping seems to maximize comparability with the historical data, but it obscures subnational variation and makes it hard to reconcile with the official Destatis releases. Should we add a mapping table or offer an alternative view?
Works for me.
I do not follow — is the anomaly going up or down here?