47 visiting now: 23 USA 
6 Singapore 
4 Brazil 
4 China 
3 India 
2 UK 
1 Russia 
1 Saudi Arabia 
1 Finland 
1 Vietnam 
1 Turkey 
1 Lithuania 
1 Belgium 
1 Uganda 
1 Pakistan 
6 Singapore 4 Brazil 4 China 3 India 2 UK 1 Russia 1 Saudi Arabia 1 Finland 1 Vietnam 1 Turkey 1 Lithuania 1 Belgium 1 Uganda 1 Pakistan