We also note that the decline following 1919 in all the three sets of numbers reflecting healthcare burden might be partly attributable to a regression to the mean, given that the second wave was still in full force in the first two months of 1920. The limitation in the data, where only yearly numbers (and not monthly numbers) are given, makes it impossible to determine the months in which the drop had occurred, and whether the decline is attributable to the decrease in healthcare demand after the pandemic was over or to the low level of healthcare demand even during the pandemic months early in the year.