52 visiting now: 30 USA 
9 Canada 
8 Singapore 
4 Russia 
3 China 
2 UK 
2 Finland 
1 Ireland 
9 Canada 8 Singapore 4 Russia 3 China 2 UK 2 Finland 1 Ireland 9 Canada 8 Singapore 4 Russia 3 China 2 UK 2 Finland 1 Ireland