You asked
With regard to your data and published graphs on Covid, previous flu seasons, and H1N1. In recent graphs, the term 'range' is used around a mean line to express the number of influenza cases over a period of years. It is generally expressed as a grey background to the mean. This same type of curve was used for H1N1 cases during the 2009 - 2010 flu season. At that time, things were clearly marked as 'estimates', I assume from models.
Is the use of 'range' in recent graphs the actual range; i.e., lowest value to maximum value, or are they statistical estimates, standard deviations, variances, or model ranges? I should be able to duplicate your graphs from actual data if is the simlle range; knowing how your 'range' is actually defined is a requisite for my analysis.
The following is an example of a graph that has indicated "range" without a clear indication of whether it is simple range (min to max on collected data), a simple range that was estimated vs collected as was done with N1H1 data, a standard deviation of collected or estimated data, a variance of collected or estimated data, etc. If drawn from a specific database, please specify.
https://www.ons.gov.uk/visualisations/dvc1230/fig1/wrapper/index.html
We said
Thank you for your enquiry.
The range noted in your request represents the minimum and maximum number of deaths in the five years that make up the average.
The numbers are available in the data download alongside the chart, please see figure 1 of our weekly deaths bulletin.
If you would like to discuss this request further, please contact health.data@ons.gov.uk.