Number of factories
535
501
468
434
400
367
333
299
265
232
198
10
11
12
13
14
15
16
17
18
19
The X-axis in the diagram shows:
Days
The Y-axis in the diagram shows:
Number of factories
X:
10
11
12
13
14
Y:
198
232
276
308
340
X:
15
16
17
18
19
Y:
376
409
441
492
535
