Number of factories
623
599
575
551
527
503
479
455
431
407
383
2
3
4
5
6
7
8
9
10
11
The X-axis in the diagram shows:
Days
The Y-axis in the diagram shows:
Number of factories
X:
2
3
4
5
6
Y:
383
416
458
498
526
X:
7
8
9
10
11
Y:
547
573
593
614
623
