F.—l

47

The following table shows, for each class of exchange, the respective percentages of business and residential stations, also the respective percentages of individual- and party-line stations, on the 31st March, 1930 :—

Graph showing Telephones per 100 of Population in the Cities and Principal Towns of New Zealand, 31st March, 1929.

The length of various items of telephone-exchange plant in existence on the 31st March, 1929 and 1930, respectively, was as follows : —

Percentage of Glass I Class II Glass III Class IV Dominion ° Exchanges. Exchanges. Exchanges. Exchanges. Percentages. __ . . . Business stations .. .. 37 32 1 28 20 29 Residential stations .. .. 63 68 72 80 71 100 100 100 100 100 : _ Individual-line stations .. 90 75 54 35 65 Party- and rural-line stations .. 10 25 46 65 35 100 100 100 100 100

Cable. I Wire. I Pole-line. T1 Si "S k Duct Line. t« twi™. Under- A in Under- In Aerial Open Under all i ground. 0 1 ' Cable. Aerial. Headings. Cable. I I i Miles. Cliains. Chains. Chains. Miles. Miles. Miles. Miles. In existence on 31st 13,658 38,003 78,286* 44,643* 333,103* 58,215* 95,693 487,011* March, 1929 Erected during year 782 1,242 7,884 2,837 26,768 3,731 7,837 38,336 Dismantled during year 91 2 2,047 2,300 8,506 2,588 1,157 12,251 In existence on 31st 14,349 39,243 84,123 45,180 351,365 59,358 102,3731 513,096 March, 1930 * Revised figures Include*' 122 miles of earth- working circuit.