28 visiting now: 10 USA 
3 Brazil 
2 China 
1 South Africa 
1 Norway 
1 Tunisia 
1 Palestine 
1 Turkey 
1 Philippines 
1 Iraq 
1 Uruguay 
1 Russia 
1 Italy 
1 Argentina 
1 Saudi Arabia 
1 Mexico 
1 Bolivia 
1 Vietnam 
3 Brazil 2 China 1 South Africa 1 Norway 1 Tunisia 1 Palestine 1 Turkey 1 Philippines 1 Iraq 1 Uruguay 1 Russia 1 Italy 1 Argentina 1 Saudi Arabia 1 Mexico 1 Bolivia 1 Vietnam