Analyze the map below and answer the question that follows.

A political map of Europe. Countries are highlighted and labeled 1 to 6. 1 is on a peninsula next to Portugal. 2 is an island northwest of France. 3 is between Spain and Germany. 4 is southeast of France and shaped like a boot. 5 is between France and Poland. 6 is the largest country next to Finland, Lithuania, Belarus, and Ukraine.
Image courtesy of NASA

List all six countries on the map above in order from the least populated to the most populated. Make sure to identify the name of the nation as well as the population.