Number of factories
613
596
579
561
544
527
510
493
475
458
441
16
17
18
19
20
21
22
23
24
25
The X-axis in the diagram shows:
Days
The Y-axis in the diagram shows:
Number of factories
X:
16
17
18
19
20
Y:
441
455
479
505
524
X:
21
22
23
24
25
Y:
538
551
569
592
613
