66 visiting now: 32 USA 
10 Canada 
8 Singapore 
6 Brazil 
3 Russia 
3 Germany 
3 UK 
2 Hong Kong 
2 China 
1 South Africa 
1 India 
1 Spain 
1 Latvia 
1 Netherlands 
1 Czech Republic 
10 Canada 8 Singapore 6 Brazil 3 Russia 3 Germany 3 UK 2 Hong Kong 2 China 1 South Africa 1 India 1 Spain 1 Latvia 1 Netherlands 1 Czech Republic