43 visiting now: 11 Canada 
11 Singapore 
10 China 
8 USA 
5 Russia 
2 UK 
1 Turkey 
1 France 
1 Argentina 
11 Singapore 10 China 8 USA 5 Russia 2 UK 1 Turkey 1 France 1 Argentina 11 Singapore 10 China 8 USA 5 Russia 2 UK 1 Turkey 1 France 1 Argentina