24 visiting now: 7 USA 
3 Pakistan 
2 Iraq 
2 Uzbekistan 
2 Germany 
1 Slovakia 
1 Algeria 
1 South Africa 
1 Jordan 
1 China 
1 Mexico 
1 Colombia 
1 Netherlands 
1 Costa Rica 
3 Pakistan 2 Iraq 2 Uzbekistan 2 Germany 1 Slovakia 1 Algeria 1 South Africa 1 Jordan 1 China 1 Mexico 1 Colombia 1 Netherlands 1 Costa Rica