50 visiting now: 20 USA 
11 China 
3 Russia 
3 Brazil 
3 Singapore 
2 Canada 
2 India 
2 Bangladesh 
1 France 
1 Hong Kong 
1 UK 
1 Germany 
11 China 3 Russia 3 Brazil 3 Singapore 2 Canada 2 India 2 Bangladesh 1 France 1 Hong Kong 1 UK 1 Germany