25 visiting now: 4 Singapore 
3 USA 
2 South Africa 
2 Iraq 
2 Argentina 
2 UK 
2 Brazil 
2 Vietnam 
1 India 
1 Malawi 
1 Paraguay 
1 Costa Rica 
1 Saudi Arabia 
1 Germany 
3 USA 2 South Africa 2 Iraq 2 Argentina 2 UK 2 Brazil 2 Vietnam 1 India 1 Malawi 1 Paraguay 1 Costa Rica 1 Saudi Arabia 1 Germany