Number of factories
233
215
197
179
161
143
125
107
89
71
53
5
6
7
8
9
10
11
12
13
The X-axis in the diagram shows:
Days
The Y-axis in the diagram shows:
Number of factories
X:
5
6
7
8
9
Y:
53
86
109
135
148
X:
10
11
12
13
Y:
163
177
212
233
