19 visiting now: 11 USA 
2 Bangladesh 
2 Brazil 
1 Spain 
1 Ukraine 
1 Germany 
1 Russia 
1 Saudi Arabia 
2 Bangladesh 2 Brazil 1 Spain 1 Ukraine 1 Germany 1 Russia 1 Saudi Arabia 2 Bangladesh 2 Brazil 1 Spain 1 Ukraine 1 Germany 1 Russia 1 Saudi Arabia