42 visiting now: 20 USA 
9 Canada 
6 Singapore 
3 UK 
2 China 
2 Hong Kong 
1 Argentina 
1 Ukraine 
9 Canada 6 Singapore 3 UK 2 China 2 Hong Kong 1 Argentina 1 Ukraine 9 Canada 6 Singapore 3 UK 2 China 2 Hong Kong 1 Argentina 1 Ukraine