Last week I drew attention to the covid graph which I described as ‘a rapid downturn in 2020, then an upsurge, before a further reduction, and then a slow climb upwards from late 2021, punctuated by the omicron-induced fall in late 2021 / early 2022’.
Because of the several stages of the evolution of covid and the resulting changes in annual growth it has become common (almost universal) practice, when comparing current levels, to reach back over any intervening covid-impacted years to 2019 – the last ‘normal’ year. But at what point do we stop? When do we revert to comparisons of the prior year?
Read the full story
