54 visiting now: 33 USA 
7 Singapore 
5 China 
3 Canada 
2 India 
2 Ireland 
2 Ukraine 
1 Finland 
1 Argentina 
1 UK 
7 Singapore 5 China 3 Canada 2 India 2 Ireland 2 Ukraine 1 Finland 1 Argentina 1 UK 7 Singapore 5 China 3 Canada 2 India 2 Ireland 2 Ukraine 1 Finland 1 Argentina 1 UK