61 visiting now: 27 USA 
11 Singapore 
6 Canada 
4 Hong Kong 
3 France 
3 Australia 
1 UK 
1 Belgium 
1 India 
1 Brazil 
1 Vietnam 
1 Iran 
1 Saudi Arabia 
1 China 
11 Singapore 6 Canada 4 Hong Kong 3 France 3 Australia 1 UK 1 Belgium 1 India 1 Brazil 1 Vietnam 1 Iran 1 Saudi Arabia 1 China