Place
- Bulgaria, Europe6
- France3
- Germany3
- Greece3
- Ruse, Bulgaria3
- Russian Soviet Federative Socialist Republic, Asia3
- Sofia Province, Bulgaria3
- Belgium, Europe2
- Egypt, Africa2
- England2
- Istanbul, Turkey2
- Romania, Europe2
- Spain, Europe2
- Varna, Bulgaria2
- Vienna, Austria2
- Afghanistan, Asia1
- Algeria, Africa1
- America, North America1
- Athens, Greece1
- Austria, Europe1