CHAPTER II, SECTION 6

90,000

en

_—

80,000

a

Lt

60,000

NUMBER

OF

CALLS

70,000

50,000

40,000

30,000
5-19

5-26 62
69616
623 630
I958- WEEK ENDING

Chart No. 2-20.
Page 316

7-7

Telephone Exchange Calling Rate — Elmer.

7-14

7-2!

Select target paragraph3