25 visiting now: 8 USA 
8 China 
3 Singapore 
2 India 
1 Russia 
1 Germany 
1 Hong Kong 
1 Turkey 
8 China 3 Singapore 2 India 1 Russia 1 Germany 1 Hong Kong 1 Turkey 8 China 3 Singapore 2 India 1 Russia 1 Germany 1 Hong Kong 1 Turkey