FIGURE M 



NUM5EE5 



238 

 27.2 

 30.6 



34.0 



O Cn 



3 7.4 [y 



40.8 



44.2 



47.6 



51.0 



54.4 



7578 



! 



}6I.2 

 > 



S646 

 68.0 



71.4 

 74.8 

 78.2 



8 1 .6 - 



85.0 



88.4 



91.6 



95.E 



98.6 



lo^o 



