52 visiting now: 24 USA 
9 Singapore 
3 Canada 
2 China 
2 Bangladesh 
2 Germany 
2 Brazil 
1 Russia 
1 Ukraine 
1 Senegal 
1 Cyprus 
1 Belgium 
1 Spain 
1 Kenya 
1 Turkey 
1 Morocco 
1 UK 
9 Singapore 3 Canada 2 China 2 Bangladesh 2 Germany 2 Brazil 1 Russia 1 Ukraine 1 Senegal 1 Cyprus 1 Belgium 1 Spain 1 Kenya 1 Turkey 1 Morocco 1 UK