26 visiting now: 16 USA 
6 China 
4 Singapore 
3 UK 
2 Germany 
2 Mexico 
1 Japan 
1 Vietnam 
1 Argentina 
1 Russia 
1 Bangladesh 
6 China 4 Singapore 3 UK 2 Germany 2 Mexico 1 Japan 1 Vietnam 1 Argentina 1 Russia 1 Bangladesh