41 visiting now: 27 Vietnam 
6 USA 
3 Brazil 
1 Russia 
1 Tunisia 
1 Canada 
1 Chile 
1 Venezuela 
1 China 
1 Germany 
1 Argentina 
6 USA 3 Brazil 1 Russia 1 Tunisia 1 Canada 1 Chile 1 Venezuela 1 China 1 Germany 1 Argentina