20 visiting now: 8 USA 
5 China 
2 Russia 
1 Syria 
1 Hong Kong 
1 Kenya 
1 Morocco 
1 Bangladesh 
1 Singapore 
5 China 2 Russia 1 Syria 1 Hong Kong 1 Kenya 1 Morocco 1 Bangladesh 1 Singapore 5 China 2 Russia 1 Syria 1 Hong Kong 1 Kenya 1 Morocco 1 Bangladesh 1 Singapore