Number of factories
590
572
554
536
518
501
483
465
447
429
411
31
1
2
3
4
5
6
7
8
9
The X-axis in the diagram shows:
Days
The Y-axis in the diagram shows:
Number of factories
X:
31
1
2
3
4
Y:
411
442
456
467
479
X:
5
6
7
8
9
Y:
495
524
556
573
590