282 ( Estados Unidos de América ) 
60 ( Singapur ) 
21 ( Alemania ) 
14 ( Ecuador ) 
9 ( Reino Unido ) 
7 ( Letonia ) 
6 ( Rusia ) 
4 ( Hong kong ) 
4 ( Finlandia ) 
3 ( Cuba ) 
3 ( México ) 
2 ( Perú ) 
2 ( China ) 
1 ( Bulgaria ) 
1 ( Bolivia ) 
1 ( Guatemala ) 
1 ( Togo ) 
1 ( Colombia ) 
1 ( Chile ) 
1 ( Argentina ) 
1 ( Austria ) 
1 ( España )