55 visiting now: 30 Vietnam 
8 USA 
4 China 
3 Argentina 
2 Russia 
2 Germany 
2 Indonesia 
1 Iraq 
1 Brazil 
1 Mexico 
1 Singapore 
1 Hong Kong 
1 Syria 
8 USA 4 China 3 Argentina 2 Russia 2 Germany 2 Indonesia 1 Iraq 1 Brazil 1 Mexico 1 Singapore 1 Hong Kong 1 Syria