Number of factories
244
227
209
192
174
157
139
122
104
87
69
24
25
26
27
28
29
30
1
2
The X-axis in the diagram shows:
Days
The Y-axis in the diagram shows:
Number of factories
X:
24
25
26
27
28
Y:
69
101
129
142
159
X:
29
30
1
2
Y:
172
191
216
244