39 visiting now: 16 USA 
3 Turkey 
2 Russia 
2 Uzbekistan 
2 Vietnam 
1 Spain 
1 Pakistan 
1 Egypt 
1 Philippines 
1 Iraq 
1 Ukraine 
1 Japan 
1 Belarus 
1 Saudi Arabia 
1 Jordan 
1 Czech Republic 
1 Singapore 
1 Morocco 
1 Ecuador 
3 Turkey 2 Russia 2 Uzbekistan 2 Vietnam 1 Spain 1 Pakistan 1 Egypt 1 Philippines 1 Iraq 1 Ukraine 1 Japan 1 Belarus 1 Saudi Arabia 1 Jordan 1 Czech Republic 1 Singapore 1 Morocco 1 Ecuador