40 visiting now: 26 USA 
8 Singapore 
3 UK 
2 Vietnam 
1 Iran 
1 Brazil 
1 China 
1 Colombia 
1 India 
8 Singapore 3 UK 2 Vietnam 1 Iran 1 Brazil 1 China 1 Colombia 1 India 8 Singapore 3 UK 2 Vietnam 1 Iran 1 Brazil 1 China 1 Colombia 1 India