35 visiting now: 31 USA 
3 Singapore 
2 China 
2 UK 
1 Ireland 
1 Korea 
1 Norway 
1 Germany 
3 Singapore 2 China 2 UK 1 Ireland 1 Korea 1 Norway 1 Germany 3 Singapore 2 China 2 UK 1 Ireland 1 Korea 1 Norway 1 Germany