53 visiting now: 22 USA 
8 Brazil 
7 China 
4 Canada 
2 Vietnam 
2 Singapore 
2 Germany 
1 UK 
1 Jordan 
1 Uruguay 
1 Pakistan 
1 Ethiopia 
1 Saudi Arabia 
1 Georgia 
1 South Africa 
1 Iran 
8 Brazil 7 China 4 Canada 2 Vietnam 2 Singapore 2 Germany 1 UK 1 Jordan 1 Uruguay 1 Pakistan 1 Ethiopia 1 Saudi Arabia 1 Georgia 1 South Africa 1 Iran