The number of dogs per human and the Witcher effect

If a country has Witchers it has two times more dogs than other countries. Is it coincidence? I don’t think so…
Because number of cats per human is relatively the same.

Country Russia Poland Germany
Number of humans (mln) 144 38 82
Is country of Witcher false TRUE false
Number of dogs (mln) 16.5 7.6 9.2
Number of cats(mln) 22.5 6.1 13.7
Humans per dog 8.73 5 8.91
Humans per cat 6.4 6.23 5.99