We do not currently publish the R rate in each region. The Government Office for Science currently publishes the latest estimate of the United Kingdom-wide range for R on a weekly basis. The current range is estimated to be 0.7-1.0 and is based on latest data available to determine infection and transmission rates.
The Government is committed to publishing the scientific evidence that has informed the Scientific Advisory Group for Emergencies advice. These papers are being published in batches. The latest batches were released on 20 March 2020 and 5 May 2020 and the next batch will published in the coming weeks. The full list of papers released to date is available at the following link. This list will be updated to reflect papers considered at recent and future meetings.