Number of factories
520
496
473
449
425
402
378
354
330
307
283
6
7
8
9
10
11
12
13
14
15
The X-axis in the diagram shows:
Days
The Y-axis in the diagram shows:
Number of factories
X:
6
7
8
9
10
Y:
283
314
340
363
405
X:
11
12
13
14
15
Y:
432
462
478
496
520
