34 visiting now: 15 USA 
3 Brazil 
2 Germany 
2 Canada 
2 Russia 
2 Australia 
1 Colombia 
1 Iran 
1 Taiwan 
1 Mexico 
1 Ecuador 
1 China 
1 India 
1 Saudi Arabia 
3 Brazil 2 Germany 2 Canada 2 Russia 2 Australia 1 Colombia 1 Iran 1 Taiwan 1 Mexico 1 Ecuador 1 China 1 India 1 Saudi Arabia