44 visiting now: 23 USA 
7 Singapore 
7 China 
5 UK 
3 Germany 
1 Hong Kong 
1 Ireland 
1 Russia 
1 Spain 
7 Singapore 7 China 5 UK 3 Germany 1 Hong Kong 1 Ireland 1 Russia 1 Spain 7 Singapore 7 China 5 UK 3 Germany 1 Hong Kong 1 Ireland 1 Russia 1 Spain