ref: ba4a1c07f1bc7622f8a3dcd4f2d383f4ec70fc1c
dir: /test/test.countries/
Russia 8650 262 Asia Canada 3852 24 North America China 3692 866 Asia USA 3615 219 North America Brazil 3286 116 South America Australia 2968 14 Australia India 1269 637 Asia Argentina 1072 26 South America Sudan 968 19 Africa Algeria 920 18 Africa