49 visiting now: 42 USA 
5 China 
3 India 
2 Singapore 
1 Sweden 
1 Germany 
1 Turkey 
1 Kenya 
1 Peru 
1 Brazil 
5 China 3 India 2 Singapore 1 Sweden 1 Germany 1 Turkey 1 Kenya 1 Peru 1 Brazil 5 China 3 India 2 Singapore 1 Sweden 1 Germany 1 Turkey 1 Kenya 1 Peru 1 Brazil