• Russia - 85 persons
• Ukraine - 77 persons
• Germany - 10 persons
• Japan - 8 persons
• The USA - 5 persons
• Belgium - 3 persons
• The Great Britain - 3 persons
• Spain - 2 persons
• Kazakhstan - 2 persons
• Luxembourg - 2 persons
• Belarus - 1 person
• China - 1 person
• Korea - 1 person
• Norway - 1 person
• Slovakia - 1 person
• France - 1 person
• Switzerland - 1 person