Control  250     23.6    
 Control  230     26.0    
 Control  197     26.0    
 Control  238     26.7    
 Control  174     29.2    
 Control  263     29.5    
 Control  275     31.3    
 Control  193     32.9    
 Control  204     35.4      
 Control  168     29.2      
 Treatmnt 254     26.0   
 Treatmnt 178     32.6   
 Treatmnt 139     32.6   
 Treatmnt 249     33.0   
 Treatmnt 236     34.4   
 Treatmnt 231     36.5   
 Treatmnt 161     38.5   
 Treatmnt 255     40.0   
 Treatmnt 275     41.7   
 Treatmnt 181     44.8   
 Familiar 193     36.0
 Familiar 223     41.0
 Familiar 232     43.0   
 Familiar 214     44.0
 Familiar 269     44.0
 Familiar 256     46.0
 Familiar 224     46.0
 Familiar 225     48.0
 Familiar 288     49.0
 Familiar 244     52.0