OTHER FACTORS IN DIFFERENT REGIONS 273 



2 



*" O 



-3 



CO fl 



e3 a 



3 > 



5 a 

 8 

 II 



B 



73 d 



03 



03 43 g 



CO t_i ^ 



U !n ** 



o ^ ^ c *- a 

 2 o " a 3 



f I ^ili 



O O *0 T3 3 a 



8 g S 



