27 visiting now: 12 USA 
8 China 
2 Singapore 
1 Japan 
1 Germany 
1 Hong Kong 
1 Taiwan 
1 Iraq 
8 China 2 Singapore 1 Japan 1 Germany 1 Hong Kong 1 Taiwan 1 Iraq 8 China 2 Singapore 1 Japan 1 Germany 1 Hong Kong 1 Taiwan 1 Iraq