Asia (6):

3 in Japan, 3 in Korea;

Europe(10):

2 in Russia, 2 in Germany, 1 in Britain,

2 in Italy, 1 in Denmark, 1 in Switzerland,

1 in Serbia;

America (5):

3 in the United States, 1 in Canada,

1 in Brazil;

Africa (5):

1 in Botswana, 1 in Mauritius,

2 in Namibia, 1 in Cape Verde;

Oceania (1):

1 in Australia