68 visiting now: 43 China 
8 USA 
4 Singapore 
3 India 
3 Russia 
2 UK 
2 Germany 
1 Taiwan 
1 Hong Kong 
1 Indonesia 
8 USA 4 Singapore 3 India 3 Russia 2 UK 2 Germany 1 Taiwan 1 Hong Kong 1 Indonesia 8 USA 4 Singapore 3 India 3 Russia 2 UK 2 Germany 1 Taiwan 1 Hong Kong 1 Indonesia