43 visiting now: 23 USA 
8 Singapore 
6 China 
4 UK 
1 France 
1 Ireland 
1 Belgium 
1 Canada 
1 Ukraine 
8 Singapore 6 China 4 UK 1 France 1 Ireland 1 Belgium 1 Canada 1 Ukraine 8 Singapore 6 China 4 UK 1 France 1 Ireland 1 Belgium 1 Canada 1 Ukraine