63 visiting now: 48 USA 
8 Singapore 
6 Canada 
4 Russia 
2 China 
1 Ireland 
1 Israel 
1 Australia 
1 UK 
8 Singapore 6 Canada 4 Russia 2 China 1 Ireland 1 Israel 1 Australia 1 UK 8 Singapore 6 Canada 4 Russia 2 China 1 Ireland 1 Israel 1 Australia 1 UK