28 visiting now: 9 USA 
3 France 
2 UK 
2 China 
2 Algeria 
2 Switzerland 
1 Latvia 
1 Australia 
1 Mexico 
1 Morocco 
1 Pakistan 
1 Germany 
1 India 
1 Argentina 
3 France 2 UK 2 China 2 Algeria 2 Switzerland 1 Latvia 1 Australia 1 Mexico 1 Morocco 1 Pakistan 1 Germany 1 India 1 Argentina