19 visiting now: 6 USA 
4 Vietnam 
3 China 
2 Belgium 
1 Mexico 
1 Germany 
1 Bangladesh 
1 Japan 
4 Vietnam 3 China 2 Belgium 1 Mexico 1 Germany 1 Bangladesh 1 Japan 4 Vietnam 3 China 2 Belgium 1 Mexico 1 Germany 1 Bangladesh 1 Japan