43 visiting now: 21 USA 
6 Singapore 
3 UK 
3 Brazil 
2 Canada 
2 Japan 
1 Pakistan 
1 China 
1 Russia 
1 Germany 
1 Algeria 
1 Bangladesh 
1 South Africa 
1 Jordan 
1 Turkey 
1 Malaysia 
6 Singapore 3 UK 3 Brazil 2 Canada 2 Japan 1 Pakistan 1 China 1 Russia 1 Germany 1 Algeria 1 Bangladesh 1 South Africa 1 Jordan 1 Turkey 1 Malaysia