13 visiting now: 3 China 
3 USA 
2 Brazil 
1 Uruguay 
1 South Africa 
1 Spain 
1 Turkey 
1 Uganda 
3 USA 2 Brazil 1 Uruguay 1 South Africa 1 Spain 1 Turkey 1 Uganda 3 USA 2 Brazil 1 Uruguay 1 South Africa 1 Spain 1 Turkey 1 Uganda