Continents: UN M49 geographic regions plus editable local overrides. Continent flag symbols are self-designed for this site because there is no official common flag set for continents.
Continent: the derived continent value. Click a continent to open its generated continent map. Antarctica is listed in the table but omitted from the pie chart by request.
Countries: number of distinct country labels assigned to this continent in the current station table.
Count: the number of rows assigned to this value.
Percent: the fraction of all rows represented by this group.