None 17.81%:  1 9.16%:  2 12.20%:  3-4 17.70%:  more than 4! 43.13%:  
1 9.16%:  2 12.20%:  3-4 17.70%:  more than 4! 43.13%:  
2 12.20%:  3-4 17.70%:  more than 4! 43.13%:  
3-4 17.70%:  more than 4! 43.13%:  
more than 4! 43.13%: