54 visiting now: 34 USA 
6 Singapore 
4 Canada 
3 India 
2 UK 
2 Ukraine 
2 Australia 
2 China 
1 Germany 
1 Ireland 
1 Russia 
6 Singapore 4 Canada 3 India 2 UK 2 Ukraine 2 Australia 2 China 1 Germany 1 Ireland 1 Russia