Using the card
The map above is interactive. You can use the +/- symbols to zoom in and out. Hovering over an individual country will reveal the statistics uncovered in the study as they apply to that specific country.
The data available in the overview includes the start and end dates of the country’s lockdown period. Note that this is where the OxCGRT tracker records a Lockout Stringency Index score above 50, rather than the first or last day any form of lockdown action took effect. Likewise, the end date is either the last day of the lockdown passed 50 or the last day of the study period – June 30, 2020 – whichever comes first.
You will also find the average lock stringency average (see the methodology downloadable on this page for a detailed explanation of the OxCGRT stringency index), the total number of speed tests over the six month study period, the average speed download speed while locked and download speed outside lock.
Why some countries lack data
114 countries qualified for inclusion in this study, leaving over 100 countries and territories ineligible. Non-qualifiers fall into three distinct categories, which are again represented with hover explanations on the map. The three types of non-qualifiers are:
‘Included in the OxCGRT tracker, but the rigor never exceeded 50’. These six countries instituted lockdown measures, but those measures did not limit lifespan enough to cause behaviors, like staying at home, that could correlate with changes in network speeds. Since there are only six countries in this category, we can list them here. They are: Belarus, Burundi, Japan, Nicaragua, Sweden and Taiwan.
Then there are the countries “included in the OxCGRT tracker, but less than 2000 total PIs tested in M-Lab data (small sample size)”. These are countries which were followed in the OxCGRT study and which effectively instituted lockdown measures when the severity exceeded 50. However, with less than 2,000 speed tests carried out during the six-month working period on the field, there were not enough tests to produce reliable results. There are 53 countries in this category and they are listed under the “Excluded Countries” tab of the downloadable spreadsheet.
Finally, there are countries “not included in the OxCGRT lock tracker (no lock in most cases)”. And these are, as suggested, countries not tracked by the OxCGRT lockdown study. In most cases, this means that there was no lockdown in those countries during the period of fieldwork. However, there may be other reasons for their exclusion. If you want to know why a specific country was excluded from Oxford tracking, we recommend contacting them.
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