47 visiting now: 35 USA 
6 Singapore 
4 UK 
2 Bangladesh 
2 Brazil 
2 China 
1 Germany 
1 Ireland 
1 Switzerland 
1 Italy 
1 Kazakhstan 
1 Pakistan 
1 France 
1 Venezuela 
1 Senegal 
6 Singapore 4 UK 2 Bangladesh 2 Brazil 2 China 1 Germany 1 Ireland 1 Switzerland 1 Italy 1 Kazakhstan 1 Pakistan 1 France 1 Venezuela 1 Senegal