Number of factories
875
873
872
870
868
867
865
863
861
860
858
25
26
27
28
29
30
31
1
2
3
The X-axis in the diagram shows:
Days
The Y-axis in the diagram shows:
Number of factories
X:
25
26
27
28
29
Y:
865
858
859
863
865
X:
30
31
1
2
3
Y:
870
873
875
863
868