MAP III. 
Up 
7, 
| i | | 1 
Bro PE 
YY yyy? R CENT. AND GREATER =t 
e 7A LESS THAN 70 PER CENT. 
e. oe t7 7 1 
Wy 4 : C d Pp h f twen- 
5 Bi ty years data for the months of March, 
WO c April, May and June. 
w ar 
wy iov 1or es OF os sr 
