20 visiting now: 8 USA 
4 Vietnam 
3 China 
1 Germany 
1 India 
1 Brazil 
1 Cambodia 
1 Mexico 
4 Vietnam 3 China 1 Germany 1 India 1 Brazil 1 Cambodia 1 Mexico 4 Vietnam 3 China 1 Germany 1 India 1 Brazil 1 Cambodia 1 Mexico