Number of factories
402
381
359
338
317
296
274
253
232
210
189
30
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:
30
1
2
3
4
Y:
189
216
250
267
300
X:
5
6
7
8
9
Y:
308
334
364
402
399
