Place
- Bulgaria, Europe23
- Germany8
- France7
- Ruse, Bulgaria7
- Sofia Province, Bulgaria7
- Russian Soviet Federative Socialist Republic, Asia6
- England5
- Greece5
- Turkey, Europe/Asia5
- Vienna, Austria5
- America, North America4
- Austria, Europe4
- Egypt, Africa4
- India, Asia4
- Istanbul, Turkey4
- Romania, Europe4
- Russia, Europe4
- Spain, Europe4
- Varna, Bulgaria4
- Ankara, Turkey3