25 visiting now: 6 Russia 
6 USA 
5 Vietnam 
2 Belgium 
2 Brazil 
1 China 
1 Colombia 
1 Germany 
1 Israel 
6 USA 5 Vietnam 2 Belgium 2 Brazil 1 China 1 Colombia 1 Germany 1 Israel 6 USA 5 Vietnam 2 Belgium 2 Brazil 1 China 1 Colombia 1 Germany 1 Israel