54 visiting now: 25 USA 
9 Singapore 
4 Brazil 
4 Canada 
3 UK 
3 China 
2 Argentina 
1 Korea 
1 Turkey 
1 Netherlands 
1 Pakistan 
1 Russia 
1 Vietnam 
1 Germany 
1 South Africa 
9 Singapore 4 Brazil 4 Canada 3 UK 3 China 2 Argentina 1 Korea 1 Turkey 1 Netherlands 1 Pakistan 1 Russia 1 Vietnam 1 Germany 1 South Africa