CASE STUDY: TREND OF HISTORICAL CONSUMPTION

Approaching trend by a mathematical model

(1982 = 0)

Years

Available data of traffic 10⁶

Estimate of total traffic 10⁶

reference

local

trunk

internat

local

trunk

internat

total

1

250

9.911

1.655

237

11.804

2

10.340

1.702

253

12.295

3

10821

10.800

1.763

275

12.837

4

11298

1807

306

11.290

1.836

303

13.429

5

11805

1986

321

11.810

1.923

338

14.072

6

12322

2049

367

12.361

2.023

380

14.764

7

12902

2057

402

12.943

2.137

428

15.507

8

13545

2217

476

13.555

2.264

482

16.301

9

14230

2474

559

14.198

2.404

542

17.144

10

14934

2566

642

14.871

2.557

609

18.038

11

15608

2713

713

15.575

2.724

683

18.982

12

16247

2919

767

16.310

2.904

763

19.976

13

3083

811

17.075

3.097

849

21.021

Local traffic in millions minutes

Trunk traffic in millions minutes

International traffic in millions minutes